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  • Drill Size Chart for Number and Letter GaugesExplore further

    2018-9-9u2002·u2002These specialist drill bits are used for drilling centreholes at two different angles, 60 degrees and90 degrees. They are commonly used to drill lathe centres and spotting drills, i.e.marking holes to guide twist drilling. The drill size chart below contains all commonly used centre drill bit sizes. Size designation Drill diameter [inches (mm)]

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  • Drill Size Chart - Machining - CustomPart.Net

    Drill Size Chart. The drill size chart provides a list of standard size drill bits in several measurement systems, including fractional, metric, wire gauge number, and letter. The decimal equivalents of the diameters are shown in both English and Metric units. Fractional sizes are measured in inches, while metric sizes are measured in millimeters.

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  • Drill Size Chart - Carbide Depot

    drill size chart. fract size # size. letter size. metric size. decimal inches . 80 . 0.0135 . 79 . 0.0145

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  • Letter Drill Size Index - Argonne National Laboratory

    2007-4-9u2002·u2002Letter Size Drills Diameter in Inches; Ltr. Dia. A.234: B.238: C.242: D.246: E.250: F.257: G.261: H.266: Ltr. Dia. N.302: O.316: P.323: Q.332: R.339: S.348: T.358: U.368

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  • DRILL-N-REAM - Drilling Tools

    2021-6-30u2002·u2002Drill-N-Ream is the preferred choice for your wellbore quality solutions. This Eccentric dual stage wellbore conditioning tool has blades that act in unison to force the cutting structure into the formation. This tool efficiently reduces ledges, doglegs, and wellbore tortuosity. Each stage includes at least four blades

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  • CHARACTERISTIC Head Style Drill bit ... -

    2021-7-1u2002·u2002Drill bit specification SYMBOL UNITS NOMINAL ANCHOR DIAMETER (inch) Hex Head ANSI SAMMYS for Horizontal Rod (SW-CCST 516) Hex Head Tapcon+ ANSI Hex Head ANSI SAMMYS for Vertical Rod (CCST 516) Tapcon+ Minimum edge 11 2 11 2 distance Minimum spacing For SI: I inch = 25.4 mm, Smin 1 ft-lbf — 356 N- m. 2112 13/4 3112 2112 Minimum …

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  • Drill Nomenclature and Geometry - NEMES

    2005-5-6u2002·u2002Drill Nomenclature-Points• Elements of Drill Points • Lip Relief Angle – Varies with the diameter of the drill and hardness of the material – On larger diameters and drills for harder materials, lip relief is decreased to as low as 8° – Drills for soft materials and small diameters have high relief angles up to 24° – Lip relief angles are measured across the margin

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  • List of Drill Bit and Tap Sizes - Drill Size Chart and Tap ...

    2020-3-19u2002·u2002Metric drill bit sizes: diameter of the bit in terms of standard metric lengths. Letter drill bit sizes: the sizes are indicated in letters, from size A (the smallest) to size Z (the largest). Number drill bit sizes: the sizes are indicated in numbers, range from size 80 (the smallest) to size 1 (the largest).Number and letter sizes are commonly used for twist drill bits rather than other ...

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  • Drill size chart - inch and metric

    2018-9-9u2002·u2002Metric drill sizes are used primarily in Europe and use metric units to measure the drill bit diameter. There are a variety of standards used to define drill sizes, the most common one in the UK is the British Standard BS 328 set which includes twist drill …

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  • Drill Size Chart (Inch) - gearhob.com

    2009-10-15u2002·u2002Please send corrections and comments to: eng form Last Updated on: 05/01/200305/01/2003

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  • Drill Sizes and Conversions

    2014-12-15u2002·u2002Drill Sizes and Conversions Drill Sizes Conversions Numbers & Letters Fractional Metric Inch mm 100 0.0050 0.127 99 0.0053 0.135 98 0.0055 0.140 97 0.0059 0.150 96 0.0063 0.160 95 0.0067 0.170 94 0.0071 0.180 93 0.0075 0.190 92 0.20 0.0079 0.200 91 0.21 0.0083 0.210 90 0.22 0.0087 0.220 89 0.23 0.0091 0.230

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  • Drill Size Chart - Machining - CustomPart.Net

    Drill Size Chart. The drill size chart provides a list of standard size drill bits in several measurement systems, including fractional, metric, wire gauge number, and letter. The decimal equivalents of the diameters are shown in both English and Metric units. Fractional sizes are measured in inches, while metric sizes are measured in millimeters.

    Get Price
  • Letter Drill Size Index - Argonne National Laboratory

    2007-4-9u2002·u2002Letter Size Drills Diameter in Inches; Ltr. Dia. A.234: B.238: C.242: D.246: E.250: F.257: G.261: H.266: Ltr. Dia. N.302: O.316: P.323: Q.332: R.339: S.348: T.358: U.368

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  • TAP DRILL SIZES - INCH & METRIC with DRILL SIZE

    2020-12-17u2002·u2002diameter of hole. See equation: M6 - (1.2990 X 75) = (6 - .9743) = 5.0257mm To figure whether or not pitch is too coarse for diameter: (Double thread depth) X 3 = x x = the smallest diameter possible for that T.P.I. % of Full Thread* X mm Pitch 76.98 TAP DRILL SIZES - INCH & METRIC with DRILL SIZE FORMULAS (cont.) ENGINEERING DATA

    Get Price
  • DRILL-N-REAM - Drilling Tools

    2021-6-30u2002·u2002Drill-N-Ream is the preferred choice for your wellbore quality solutions. This Eccentric dual stage wellbore conditioning tool has blades that act in unison to force the cutting structure into the formation. This tool efficiently reduces ledges, doglegs, and wellbore tortuosity. Each stage includes at least four blades

    Get Price
  • Makita Electric Drill - Makita Drilling Machine Latest ...

    Brand: Makita. No Load Speed: 0 - 3150 rpm. Drilling Diameter: 13 mm. Voltage: 220 V. Dimensions: 285x100x260mm. Motor Output: 1000 watts

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  • Drill Blanks

    Choose from over 1,000 drill blanks in a wide range of sizes. Includes material certificates and CAD models. In stock and ready to ship.

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  • Drill Bit Types - The Ultimate Guide

    Auger bits are capable of drilling very large holes with ease and are designed only for drilling into thick, hard and dry timber. The screw thread at the tip of the drill bit draws the drill bit into the material – eliminating the need to push – whilst the single-spur cutting edge scribes the circumference of the hole for a smoother finish and the large flutes on the drill bit rapidly ...

    Get Price
  • Tap drill size calculators - Theoretical Machinist

    2019-12-19u2002·u2002NOTE: The tap drill size of a hole that will be cold form tapped is usually bigger than it cutting tap counterpart. A 100% thread is 3/4 qtr, or (6/8 th ), of the full 60° triangle which is the maximum allowed height of a full thread, the 'V' shape, including flats. The UN specification specifies that the common height of a thread should be 5 ...

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  • What size hole do I drill for a 3/8 bolt?

    2020-6-20u2002·u2002Moreover, how much bigger should a hole be than a bolt? Select a drill bit 1/32 inch larger than the bolt diameter for a tight fit hole or a drill bit 1/16 inch greater than the bolt diameter for a loose fitting hole.. How big should screw hole be? For most hardwoods, the pilot hole should be at least as large as the screw's minor diameter. If the screw has deep threads, or the wood …

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  • Drill Size Chart - Carbide Depot

    2016-1-29u2002·u2002drill size chart: fract size # size: letter size: metric size: decimal inches . 80 . 0.0135 . 79 . 0.0145

    Get Price
  • Tap drill size calculators - Theoretical Machinist

    2019-12-19u2002·u2002NOTE: The tap drill size of a hole that will be cold form tapped is usually bigger than it cutting tap counterpart. A 100% thread is 3/4 qtr, or (6/8 th ), of the full 60° triangle which is the maximum allowed height of a full thread, the 'V' shape, including flats. The UN specification specifies that the common height of a thread should be 5 ...

    Get Price
  • Drill Bit Types - The Ultimate Guide

    Auger bits are capable of drilling very large holes with ease and are designed only for drilling into thick, hard and dry timber. The screw thread at the tip of the drill bit draws the drill bit into the material – eliminating the need to push – whilst the single-spur cutting edge scribes the circumference of the hole for a smoother finish and the large flutes on the drill bit rapidly ...

    Get Price
  • sds drill from Northern Tool

    SDS Max Rotary Hammer with One Key generates the power of a 15 Amp corded rotary hammer with a 1 3/4in. capacity, 8.1 ft.-lbs. of impact energy, 380 RPM, and 2900 BPM. Designed for the professional user, the M18 FUEL 1 3/4in. SDS Max Rotary Hammer with One Key is designed for power, control, safety, and productivity.

    Get Price
  • DIAMOND DRILLING - Earth Sci

    2017-6-26u2002·u2002Drill pipes used for RVC drilling are usually either 6' or 8' in diameter and 20 feet in length. Each pipe is extremely heavy and requires the use of a winch to lift and position over the drill hole. Figure 16 - 2. RVC double wall drill pipe (with tricone bit) showing air path (from NEW ERA Engineering Corp).

    Get Price
  • Exploration Diamond Core Drilling Bits BQ NQ HQ PQ

    The drill produces a 'core' which is photographed and split longitudinally. Half of the split core is assayed while the other half is permanently stored for future use and re-assaying if necessary. Although a larger diameter core is the most preferred it is the most expensive. The most common diameter sizes of core are NQ and CHD 76.

    Get Price
  • DRILL PRESS SPEED CHART - Meredith Corporation

    2019-6-20u2002·u2002Drill one side, flip material over, place center bit in its hole, and resume cut. Countersinks 2-flute 5-flute 1400 1000 1400 750 NR 750 NR 250 NR 250 NR 250 Raise and lower frequently for quicker cutting. Countersink screw pilot bits All sizes 1500 1000 500 500 NR NR Clear twist drill often. Taper drill bits with countersinks

    Get Price
  • Drilling Machine [Parts, Types, Tools, Operations] with PDF

    2021-5-12u2002·u2002The overall length of the drill is the same as that of a taper shank twist drill of the corresponding diameter. The diameter varies from 1-5 to 26mm increasing by 0-3mm in lower series to 0-25mm in higher series. 3.4 Taper Shank Twist Drill. The drills have two helical flutes with a tapered shank for holding and driving the drill.

    Get Price
  • Complete G Code List - Helman CNC

    Complete G Code List. List of G-codes commonly found on Fanuc and similarly designed CNC controls. G00 Positioning (Rapid traverse) G01 Linear interpolation (Cutting feed) G02 Circular interpolation CW or helical interpolation CW. G03 Circular interpolation CCW or helical interpolation CCW. G04 Dwell. G10 Programmable data input.

    Get Price
  • Drilling Machine: Definition, Types, Parts, Working ...

    Drilling Machine: It is a machine which is used to drill the holes on the components or workpiece with the help of drill bits. The drill bits are also called as Multi-point cutting tools which can have their rapid impact on the Material Removal Rate (MRR) i.e. a single-point cutting tool (like the one used in a lathe machine) can remove the material slowly whereas, a multi-point cutting tool ...

    Get Price
  • Drill Size Chart - Carbide Depot

    2016-1-29u2002·u2002drill size chart: fract size # size: letter size: metric size: decimal inches . 80 . 0.0135 . 79 . 0.0145

    Get Price
  • Tap drill size calculators - Theoretical Machinist

    2019-12-19u2002·u2002NOTE: The tap drill size of a hole that will be cold form tapped is usually bigger than it cutting tap counterpart. A 100% thread is 3/4 qtr, or (6/8 th ), of the full 60° triangle which is the maximum allowed height of a full thread, the 'V' shape, including flats. The UN specification specifies that the common height of a thread should be 5 ...

    Get Price
  • Drill Bit Types - The Ultimate Guide

    Auger bits are capable of drilling very large holes with ease and are designed only for drilling into thick, hard and dry timber. The screw thread at the tip of the drill bit draws the drill bit into the material – eliminating the need to push – whilst the single-spur cutting edge scribes the circumference of the hole for a smoother finish and the large flutes on the drill bit rapidly ...

    Get Price
  • sds drill from Northern Tool

    SDS Max Rotary Hammer with One Key generates the power of a 15 Amp corded rotary hammer with a 1 3/4in. capacity, 8.1 ft.-lbs. of impact energy, 380 RPM, and 2900 BPM. Designed for the professional user, the M18 FUEL 1 3/4in. SDS Max Rotary Hammer with One Key is designed for power, control, safety, and productivity.

    Get Price
  • DIAMOND DRILLING - Earth Sci

    2017-6-26u2002·u2002Drill pipes used for RVC drilling are usually either 6' or 8' in diameter and 20 feet in length. Each pipe is extremely heavy and requires the use of a winch to lift and position over the drill hole. Figure 16 - 2. RVC double wall drill pipe (with tricone bit) showing air path (from NEW ERA Engineering Corp).

    Get Price
  • Exploration Diamond Core Drilling Bits BQ NQ HQ PQ

    The drill produces a 'core' which is photographed and split longitudinally. Half of the split core is assayed while the other half is permanently stored for future use and re-assaying if necessary. Although a larger diameter core is the most preferred it is the most expensive. The most common diameter sizes of core are NQ and CHD 76.

    Get Price
  • DRILL PRESS SPEED CHART - Meredith Corporation

    2019-6-20u2002·u2002Drill one side, flip material over, place center bit in its hole, and resume cut. Countersinks 2-flute 5-flute 1400 1000 1400 750 NR 750 NR 250 NR 250 NR 250 Raise and lower frequently for quicker cutting. Countersink screw pilot bits All sizes 1500 1000 500 500 NR NR Clear twist drill often. Taper drill bits with countersinks

    Get Price
  • Drilling Machine [Parts, Types, Tools, Operations] with PDF

    2021-5-12u2002·u2002The overall length of the drill is the same as that of a taper shank twist drill of the corresponding diameter. The diameter varies from 1-5 to 26mm increasing by 0-3mm in lower series to 0-25mm in higher series. 3.4 Taper Shank Twist Drill. The drills have two helical flutes with a tapered shank for holding and driving the drill.

    Get Price
  • Complete G Code List - Helman CNC

    Complete G Code List. List of G-codes commonly found on Fanuc and similarly designed CNC controls. G00 Positioning (Rapid traverse) G01 Linear interpolation (Cutting feed) G02 Circular interpolation CW or helical interpolation CW. G03 Circular interpolation CCW or helical interpolation CCW. G04 Dwell. G10 Programmable data input.

    Get Price
  • Drilling Machine: Definition, Types, Parts, Working ...

    Drilling Machine: It is a machine which is used to drill the holes on the components or workpiece with the help of drill bits. The drill bits are also called as Multi-point cutting tools which can have their rapid impact on the Material Removal Rate (MRR) i.e. a single-point cutting tool (like the one used in a lathe machine) can remove the material slowly whereas, a multi-point cutting tool ...

    Get Price
  • Drill Size Chart - Carbide Depot

    2016-1-29u2002·u2002drill size chart: fract size # size: letter size: metric size: decimal inches . 80 . 0.0135 . 79 . 0.0145

    Get Price
  • Tap drill size calculators - Theoretical Machinist

    2019-12-19u2002·u2002NOTE: The tap drill size of a hole that will be cold form tapped is usually bigger than it cutting tap counterpart. A 100% thread is 3/4 qtr, or (6/8 th ), of the full 60° triangle which is the maximum allowed height of a full thread, the 'V' shape, including flats. The UN specification specifies that the common height of a thread should be 5 ...

    Get Price
  • Drill Bit Types - The Ultimate Guide

    Auger bits are capable of drilling very large holes with ease and are designed only for drilling into thick, hard and dry timber. The screw thread at the tip of the drill bit draws the drill bit into the material – eliminating the need to push – whilst the single-spur cutting edge scribes the circumference of the hole for a smoother finish and the large flutes on the drill bit rapidly ...

    Get Price
  • sds drill from Northern Tool

    SDS Max Rotary Hammer with One Key generates the power of a 15 Amp corded rotary hammer with a 1 3/4in. capacity, 8.1 ft.-lbs. of impact energy, 380 RPM, and 2900 BPM. Designed for the professional user, the M18 FUEL 1 3/4in. SDS Max Rotary Hammer with One Key is designed for power, control, safety, and productivity.

    Get Price
  • DIAMOND DRILLING - Earth Sci

    2017-6-26u2002·u2002Drill pipes used for RVC drilling are usually either 6' or 8' in diameter and 20 feet in length. Each pipe is extremely heavy and requires the use of a winch to lift and position over the drill hole. Figure 16 - 2. RVC double wall drill pipe (with tricone bit) showing air path (from NEW ERA Engineering Corp).

    Get Price
  • Exploration Diamond Core Drilling Bits BQ NQ HQ PQ

    The drill produces a 'core' which is photographed and split longitudinally. Half of the split core is assayed while the other half is permanently stored for future use and re-assaying if necessary. Although a larger diameter core is the most preferred it is the most expensive. The most common diameter sizes of core are NQ and CHD 76.

    Get Price
  • DRILL PRESS SPEED CHART - Meredith Corporation

    2019-6-20u2002·u2002Drill one side, flip material over, place center bit in its hole, and resume cut. Countersinks 2-flute 5-flute 1400 1000 1400 750 NR 750 NR 250 NR 250 NR 250 Raise and lower frequently for quicker cutting. Countersink screw pilot bits All sizes 1500 1000 500 500 NR NR Clear twist drill often. Taper drill bits with countersinks

    Get Price
  • Drilling Machine [Parts, Types, Tools, Operations] with PDF

    2021-5-12u2002·u2002The overall length of the drill is the same as that of a taper shank twist drill of the corresponding diameter. The diameter varies from 1-5 to 26mm increasing by 0-3mm in lower series to 0-25mm in higher series. 3.4 Taper Shank Twist Drill. The drills have two helical flutes with a tapered shank for holding and driving the drill.

    Get Price
  • Complete G Code List - Helman CNC

    Complete G Code List. List of G-codes commonly found on Fanuc and similarly designed CNC controls. G00 Positioning (Rapid traverse) G01 Linear interpolation (Cutting feed) G02 Circular interpolation CW or helical interpolation CW. G03 Circular interpolation CCW or helical interpolation CCW. G04 Dwell. G10 Programmable data input.

    Get Price
  • Drilling Machine: Definition, Types, Parts, Working ...

    Drilling Machine: It is a machine which is used to drill the holes on the components or workpiece with the help of drill bits. The drill bits are also called as Multi-point cutting tools which can have their rapid impact on the Material Removal Rate (MRR) i.e. a single-point cutting tool (like the one used in a lathe machine) can remove the material slowly whereas, a multi-point cutting tool ...

    Get Price
  • Letter Drill Size Index - Argonne National Laboratory

    2007-4-9u2002·u2002Letter Size Drills Diameter in Inches; Ltr. Dia. A.234: B.238: C.242: D.246: E.250: F.257: G.261: H.266: Ltr. Dia. N.302: O.316: P.323: Q.332: R.339: S.348: T.358: U.368

    Get Price
  • Metric Tap & Tap Drill Clearance Drill Clearance Drill Sizes

    2021-3-28u2002·u2002Tap & Clearance Drill Sizes Tap Drill Clearance Drill Screw Size Major Diameter Plastics Threads Per Inch Minor Aluminum, Brass, Diameter 75% Thread for & 50% Thread for Steel, Stainless, & Iron Close Fit Free Fit Drill Size Dec. Eq. Drill Size Dec. Eq. Drill Size Dec. Eq. Drill Size Dec. Eq.

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  • Machine Screw and Drill Size Chart (English)

    2009-1-27u2002·u2002Machine Screw and Drill Size Chart (English) Clearance Hole Drills Screw Designation Tap Drill Size Close Fit Loose Fit Number Diameter Pitch Tap Size Drill Diameter Drill Diameter Drill Diameter or dia. (inch) (threads/inch) Size (inch) Size (inch) Size (inch) #0 0.06 80 0-80 3/64 0.0469 52 0.0635 50 0.07

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  • Thread - Drill & Tap Chart

    2021-2-20u2002·u2002Machine Screw Size: Threads Per Inch: Minor Dia: Tap Drills: Clearance Hole Drills: Alum, Brass, & Plasitcs. 75% Thread: Stainless Steel,

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  • DRILL POINT GEOMETRY, an article by JOSEPH MAZOFF

    2020-2-22u2002·u2002Specifically, the lip length of a 1 ' diameter drill with 140° included angles will measure 9/16' per lip and the same drill with 118° included angles will measure 39/64' length per lip. Multiplied by both cutting edges, the 1' drill with 118° included angles is the equivalent of drilling with a 3/32' larger diameter drill. With larger ...

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  • TAP DRILL SIZES - INCH & METRIC with DRILL SIZE

    2020-12-17u2002·u2002diameter of hole. See equation: M6 - (1.2990 X 75) = (6 - .9743) = 5.0257mm To figure whether or not pitch is too coarse for diameter: (Double thread depth) X 3 = x x = the smallest diameter possible for that T.P.I. % of Full Thread* X mm Pitch 76.98 TAP DRILL SIZES - INCH & METRIC with DRILL SIZE FORMULAS (cont.) ENGINEERING DATA

    Get Price
  • Choosing The Best Drill Point Geometry

    2004-1-13u2002·u2002The MSP can then be ground on drills up to 3 inches in diameter. The chisel length can be reduced accordingly to lengths ranging from 0.050 inch for three-inch-diameter drills to 0.010 inch for 1/4-inch drills. Therefore, MSP produces a self-centering drill which eliminates the need for pilot holes even for drills as large as 3-inch diameter.

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  • 2019 PRODUCT CATALOG - ITW BUILDEX

    2019-3-29u2002·u2002• #8, #10, and 1/4 diameter Teks 1, 2, and 3 drill points • Hex head 12 LOW PROFILE ARCHITECTURAL APPLICATIONS 8 HEAVY DUTY STEEL-TO-STEEL APPLICATIONS • #12, and 1/4 diameter Teks 4, 4.5, and 5 drill points • Hex head • #10 and #12 diameter Teks 3 and Type AB points ...

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  • Screw Thread Design - Fastenal

    Pitch diameter is the diameter of a theoretical cylinder that passes through the threads in such a way that the distance between the thread crests and thread roots is equal. In an ideal product, these widths would each equal one-half of the thread pitch. Threads Per Inch Thread Pitch .

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  • SPECIAL TAPS & DIES - Besly

    2014-9-29u2002·u2002• Special Hand Taps from blanks up to 6' in diameter • Popular Special Taps and Dies 'from stock' expanded You will also find special pricing tables for X-Press Taps, Turbo-Cut Taps, Taper Pipe Taps, and Straight Pipe Taps. If coatings are needed, Besly can provide those as well.

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