the best thread drill bit m8

Just fill in the form below, click submit, you will get the price list, and we will contact you within one working day. Please also feel free to contact us via email or phone. (* is required).

  • M8 Drill Bits

    Drill and tap a variety of hole sizes. These taps and drill bits are for use on metal and plastic.. Carbon steel taps are for thread repair and occasional tapping.. High-speed steel taps and drill bits have a longer tool life than carbon steel. Uncoated high-speed steel taps and drill bits are strong enough for most jobs but don't last as long as other high-speed steel taps and drill bits.

    Get Price
  • What size drill bit do you need for a m8 bolt?

    2020-5-27u2002·u2002Choose a drill bit that corresponds to the necessary pilot hole size for the wall plug you intend to use. In other words, use a 5.0 mm drill bit for a yellow plug, a 6.0 mm drill bit for a red plug, a 7.0 mm drill bit for a brown plug, or a 10.0 mm drill bit for a blue plug.

    Get Price
  • How Big drill bit do i need to drill with a M8 Bolt ...

    2020-6-17u2002·u2002If the bolt is an M8, ( M8 X 1.25 pitch) that you are working with then use a 6.70mm drill bit or Decimal .2638 drill bit or 7.40mm drill bit. If you are working with (M8 X 1.0 pitch) then use a 7.00mm drill bit or .2756 decimal drill bit or a 19/64 drill bit .These specs are for someone tapping and drilling Hopefully this info will be useful and help someone in the future!

    Get Price
  • Metric Tap and Drill Bit Size Table - SC Fastening

    2017-6-28u2002·u2002M8 x 1.0 7.1mm M10 x 1.5 8.7mm M10 x 1.25 8.9mm 11/32 M10 x 1.0 9.1mm M12 x 1.75 10.5mm M12 x 1.5 10.7mm 27/64 M14 x 2.0 12.2mm M14 x 1.5 12.7mm M16 x 2.0 14.2mm 35/64 M16 x 1.5 14.7mm M18 x 2.5 15.5mm M18 x 1.5 16.5mm M20 x 2.5 17.5mm M20 x 1.5 18.5mm M22 x 2.5 19.5mm M22 x 1.5 20.5mm M24 x 3.0 21.0mm M24 x 2.0 22.0mm Metric Tap and Drill Bit ...

    Get Price
  • Thread - Drill & Tap Chart

    2021-2-20u2002·u2002Thread Size: Tap Drill (mm) Thread Size: Tap Drill (mm) Thread Size: Tap Drill (mm)

    Get Price
  • Metric Tap and Drill Bit Size Table - Bolt Depot

    Tap Metric Drill US Drill; 3mm x 0.5: 2.5mm-4mm x 0.7: 3.4mm-5mm x 0.8: 4.3mm-6mm x 1.0: 5.2mm-7mm x 1.0: 6.1mm: 15/64' 8mm x 1.25: 6.9mm: 17/64' 8mm x 1.0: 7.1mm ...

    Get Price
  • What size drill bit for re-tapping 8 mm?

    2015-7-8u2002·u2002Click to expand... The rule for all metric threads, for an 80% thread, is OD - one pitch, in this case 8 mm - 1.25 = 6.75. M6 is 6mm - 1mm = 5mm tapping drill. M10 - 1.5 = 8.5mm. Look up any free chart for metric threads and this is how it is worked out. If it is a highly stressed thread, better than 80 % is recommended, but after reaching 3 x ...

    Get Price
  • What size drill bit do I need for an M10 bolt? – AnswersToAll

    2021-4-27u2002·u20021 What size drill bit do I need for an M10 bolt? 2 Is an M12 bolt 12mm? 3 What drill bit size is M8 bolt? 4 What size drill bit do I need for a M8 Rawl Bolt? 5 Should you pre drill coach screws? 6 Are coach screws strong? 7 How big a pilot hole should I drill? 8 Do you drill pilot holes all the way through? 9 What is a counterbored hole?

    Get Price
  • Concrete Anchor Drill Bit Size Chart? - Haener Block

    What size hole do I drill for a 3/8 concrete anchor? Drill a 3/8 ' hole into the concrete using a carbide-tipped bit that meets ANSI Standards B212. 15. Drill the hole a 1/2″ deeper than the anchor will penetrate the concrete, making sure the minimum embedment requirements of 1-1/2″ is met. The hole can be drilled while the fixture is in ...

    Get Price
  • Best Thread Dies For Sale

    Thread Dies. M2-M16 Right Hand Thread Die. M3Tools. (17) From $4.99. Threading dies are used to form or cut a male thread on the outside of rods or bars. Threading dies provide precision in cutting and extend the life of a die by reducing wear. Taps and dies are the tools used for cutting threads. A male thread (bolt) is fed between rollers ...

    Get Price
  • Anyone know what the perfect drill size bit is for an M8 ...

    2012-11-22u2002·u2002Thanks. I have a depth measurer which just uses a ruler which that accurate but its saying 8mm or maybe 7.5. The 8mm drill was too large. Fastback said: OK, I just checked, the correct size drill for a M8 x 1.25 is 17/64 (.2656). One size …

    Get Price
  • 6 Piece Metric Thread Tap Drill Bits Set – reshline

    Metric thread drill bit size - there are totally 6 pieces of taps in different sizes, such as M3 x 0.5, M4 x 0.7, M5 x 0.8, M6 x 1, M8 x 1.25, M10 x 1.5, standard 1/4 inch (6.35 mm) hex shank. Widely application - these drill bit sets are suitable for drilling holes in wood, aluminum, iron, plastic and other materials with low hardness, the ...

    Get Price
  • Drill Tap Bits – vrsgs

    High-efficiency: They are taps with drilling function, three-in-one operation, which can drill, tap, deburr and counter holes on copper, brass, aluminum, metal sheet, and plastic at the same time. Various sizes: Can be used to tap various threads. 6 metric-M3 x 0.5, M4 x 0.7, M5 x 0.8, M6 x 1.0, M8 …

    Get Price
  • Metric Tap and Drill Bit Size Table - SC Fastening

    2017-6-28u2002·u2002M8 x 1.0 7.1mm M10 x 1.5 8.7mm M10 x 1.25 8.9mm 11/32 M10 x 1.0 9.1mm M12 x 1.75 10.5mm M12 x 1.5 10.7mm 27/64 M14 x 2.0 12.2mm M14 x 1.5 12.7mm M16 x 2.0 14.2mm 35/64 M16 x 1.5 14.7mm M18 x 2.5 15.5mm M18 x 1.5 16.5mm M20 x 2.5 17.5mm M20 x 1.5 18.5mm M22 x 2.5 19.5mm M22 x 1.5 20.5mm M24 x 3.0 21.0mm M24 x 2.0 22.0mm Metric Tap and Drill Bit ...

    Get Price
  • Buy Tomtopp M3 M4 M5 M6 M8 M10 M12 HSS Machine Thread ...

    Amazon.in: Buy Tomtopp M3 M4 M5 M6 M8 M10 M12 HSS Machine Thread Metric Plug Tap Drill Bits -7 Pieces online at low price in India on Amazon.in. Free Shipping. Cash On Delivery

    Get Price
  • m8 x 1.25 High Speed Steel Tap and 6.75 mm Drill Bit Set ...

    2021-9-10u2002·u2002Hand Tap and Drill Set comes with 1-high speed steel hand tap (plug style) and matching HSS black oxide drill bit in a plastic pouch. Drill Bit Information: A dependable, general purpose drill designed to perform in a broad range of materials in the iron and steel families. Ideal for production, maintenance or portable drilling jobs.

    Get Price
  • How Big bit do i need to drill with a M8 Bolt?

    2011-11-7u2002·u2002M8 is a thread for a bolt where the thread is machined form a 8mm diameter bar. If you want to drill a hole in a metal component to tap a hole to match the thread then drill 6.8mm diameter. if you want to drill a hole in a wall and bond a M8 thread in place drill a 8mm hole. If you want to use an expanding bolt - look on the packet as they all ...

    Get Price
  • How to Cut Threads and Drill and Tap Threads in Metal ...

    As we will be cutting an M8 x 1mm thread, using our hole size chart we can see that we need to use a letter 'T' or 7.01mm drill bit. As we are using standard mild steel we should be fine to use a 7mm HSS drill bit. 7mm HSS drill bit. Pop the drill bit in your drill and tighten the chuck fully.

    Get Price
  • Size drill bit for 8X1.25 tap??!?

    2007-4-11u2002·u2002Strathroy Ontario Canada. Apr 11, 2007. #10. To figure out the tap size for any metric tap, all you do is subtract the pitch from the size of the tap and that is your drill size. So for, M8x1.25. 1.25mm - 8mm = 6.75mm. So, 6.75mm is the drill size. To convert that to inches, 6.75/25.4= .265. .265 is 17/64ths.

    Get Price
  • M8 x 1.25 Complete Helical Thread Repair Kit - Includes 3 ...

    2020-6-14u2002·u2002Our M8 x 1.25 Complete Helical Thread Repair Kit will quickly & easily repair stripped or damaged threads and create stronger original threads in die castings or plastics. The kit includes a Drill, STI Plug Tap, 3 Lengths of Helical Inserts & Installation Tool.

    Get Price
  • 6 Piece Metric Thread Tap Drill Bits Set – reshline

    Metric thread drill bit size - there are totally 6 pieces of taps in different sizes, such as M3 x 0.5, M4 x 0.7, M5 x 0.8, M6 x 1, M8 x 1.25, M10 x 1.5, standard 1/4 inch (6.35 mm) hex shank. Widely application - these drill bit sets are suitable for drilling holes in wood, aluminum, …

    Get Price
  • Drill Tap Bits – vrsgs

    High-efficiency: They are taps with drilling function, three-in-one operation, which can drill, tap, deburr and counter holes on copper, brass, aluminum, metal sheet, and plastic at the same time. Various sizes: Can be used to tap various threads. 6 metric-M3 x 0.5, M4 x 0.7, M5 x 0.8, M6 x 1.0, M8 x 1.25, M10 x 1.5.

    Get Price
  • Buy Tomtopp M3 M4 M5 M6 M8 M10 M12 HSS Machine

    Amazon.in: Buy Tomtopp M3 M4 M5 M6 M8 M10 M12 HSS Machine Thread Metric Plug Tap Drill Bits -7 Pieces online at low price in India on Amazon.in. Free Shipping. Cash On Delivery

    Get Price
  • How to Cut Threads and Drill and Tap Threads in Metal ...

    As we will be cutting an M8 x 1mm thread, using our hole size chart we can see that we need to use a letter 'T' or 7.01mm drill bit. As we are using standard mild steel we should be fine to use a 7mm HSS drill bit. 7mm HSS drill bit. Pop the drill bit in your drill and tighten the chuck fully.

    Get Price
  • m8 x 1.25 High Speed Steel Tap and 6.75 mm Drill Bit Set ...

    2021-9-10u2002·u2002Hand Tap and Drill Set comes with 1-high speed steel hand tap (plug style) and matching HSS black oxide drill bit in a plastic pouch. Drill Bit Information: A dependable, general purpose drill designed to perform in a broad range of materials in the iron and steel families. Ideal for production, maintenance or portable drilling jobs.

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

    2020-3-19u2002·u2002List of Drill and Tap Sizes. Drill Bit Sizes (Metric) The drill size chart contains tools up to 1.5 inches in diameter, but larger tools are also commonly used. Drill Bit Sizes (English) Tap Sizes (Metric) For each thread count, the equivalent thread pitch is provided and for metric taps, the approximate thread count is shown based on the pitch.

    Get Price
  • M8 x 1.25 Complete Helical Thread Repair Kit - Includes 3 ...

    2020-6-14u2002·u2002Our M8 x 1.25 Complete Helical Thread Repair Kit will quickly & easily repair stripped or damaged threads and create stronger original threads in die castings or plastics. The kit includes a Drill, STI Plug Tap, 3 Lengths of Helical Inserts & Installation Tool.

    Get Price
  • Taps and Drill Bit Kit - Thorlabs

    2021-8-11u2002·u2002The DK3 Drill Bit Kit includes 60 drill bits of standard jobber length. The bits are constructed from high-speed steel and have a 135° point angle. This kit holds the bits in a compact, all-steel index case, with the bit sizes, tap sizes, tap drill sizes, and body drill (clearance) sizes embossed in the case.

    Get Price
  • Size drill bit for 8X1.25 tap??!?

    2007-4-11u2002·u2002Strathroy Ontario Canada. Apr 11, 2007. #10. To figure out the tap size for any metric tap, all you do is subtract the pitch from the size of the tap and that is your drill size. So for, M8x1.25. 1.25mm - 8mm = 6.75mm. So, 6.75mm is the drill size. To convert that to inches, 6.75/25.4= .265. .265 is 17/64ths.

    Get Price
  • Screw To Drill Bit Size Chart and Tap and Drill ... - RodsShop

    2 days agou2002·u2002To help my readers out, I thought I would add this quick reference chart. This should help whenever you run into a situation you need to drill a pilot hole and are not sure the size bit. I also have included the chart for drill bit size per tap size. In case you need to drill a hole and thread …

    Get Price
  • TAP DRILL SIZES - INCH & METRIC with DRILL SIZE

    2020-12-17u2002·u2002m8 x 1.25 6.70mm .2638 7.40mm .2913 m8 x 1.0 7.00mm .2756 19/64 .2969 3/8-16 5/16 .3125 s .3480 3/8-24 q .3320 t .3580 ... tap/drill sizes cont. pipe thread drilled hole sizes tap size cutting taps tru-flo ™ forming taps inch metric drill size decimal equivalent drill size decimal

    Get Price
  • Drill Bit & Tap Sets

    Metric Tap/Drill Bit Set (M8 x 1.25 Tap, 6.8 mm Drill Bit) (W8617) by Performance Tool®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in...

    Get Price
  • Buy Tomtopp M3 M4 M5 M6 M8 M10 M12 HSS Machine

    Amazon.in: Buy Tomtopp M3 M4 M5 M6 M8 M10 M12 HSS Machine Thread Metric Plug Tap Drill Bits -7 Pieces online at low price in India on Amazon.in. Free Shipping. Cash On Delivery

    Get Price
  • How to Cut Threads and Drill and Tap Threads in Metal ...

    As we will be cutting an M8 x 1mm thread, using our hole size chart we can see that we need to use a letter 'T' or 7.01mm drill bit. As we are using standard mild steel we should be fine to use a 7mm HSS drill bit. 7mm HSS drill bit. Pop the drill bit in your drill and tighten the chuck fully.

    Get Price
  • m8 x 1.25 High Speed Steel Tap and 6.75 mm Drill Bit Set ...

    2021-9-10u2002·u2002Hand Tap and Drill Set comes with 1-high speed steel hand tap (plug style) and matching HSS black oxide drill bit in a plastic pouch. Drill Bit Information: A dependable, general purpose drill designed to perform in a broad range of materials in the iron and steel families. Ideal for production, maintenance or portable drilling jobs.

    Get Price
  • Thread Tap Drill Bits Set (3/6pcs) – mikgoodies

    Complete hole drilling, tapping & deburring. Countersinking in one operation with a power drill. Thread Tap Drill Bits Set saves labor and time!The thread drilled by the drill is very reliable. Even if you do not use an electric drill, you can easily screw in the screws just by hand, saving a lot of work time.Made

    Get Price
  • Taps and Drill Bit Kit - Thorlabs

    2021-8-11u2002·u2002The DK3 Drill Bit Kit includes 60 drill bits of standard jobber length. The bits are constructed from high-speed steel and have a 135° point angle. This kit holds the bits in a compact, all-steel index case, with the bit sizes, tap sizes, tap drill sizes, and body drill (clearance) sizes embossed in the case.

    Get Price
  • Size drill bit for 8X1.25 tap??!?

    2007-4-11u2002·u2002Strathroy Ontario Canada. Apr 11, 2007. #10. To figure out the tap size for any metric tap, all you do is subtract the pitch from the size of the tap and that is your drill size. So for, M8x1.25. 1.25mm - 8mm = 6.75mm. So, 6.75mm is the drill size. To convert that to inches, 6.75/25.4= .265. .265 is 17/64ths.

    Get Price
  • Helicoil drill chart, helicoil drill size, helicoil ...

    2021-1-22u2002·u2002Helicoil Drill Chart. The minimum drilling depths shown below allow for the following recommended practices: Countersinking the drilled hole to prevent a feather edge at the start of the tapped hole. 3/4 - 1-1/2 pitch of insert 'set down' to allow for maximum production tolerance. Dimensions are shown for both plug and bottoming taps.

    Get Price
  • 5 Best Tap and Drill Sets - Oct. 2021 - BestReviews

    A tap and drill set includes bits that drill a hole and thread it for a screw in a single motion. They also can deburr sharp edges when drilling into metal. Thanks to the unique shape of the bit, the surface cuts through material, tapping and countersinking as it goes. When choosing a good kit, consider its construction materials.

    Get Price
  • What drill size do you use for form tapping M8?

    2021-8-24u2002·u2002Hi guys, I'm looking at my tooling for M8 (standard 1.25mm pitch) form tapping, and am having some trouble deciding what drill to use. The form tap drill size chart I use says that a 65% thread needs a 7.45mm drill. That's hard-to-find metric size, and is right in between L and M letter drills.

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

    2020-3-19u2002·u2002List of Drill and Tap Sizes. Drill Bit Sizes (Metric) The drill size chart contains tools up to 1.5 inches in diameter, but larger tools are also commonly used. Drill Bit Sizes (English) Tap Sizes (Metric) For each thread count, the equivalent thread pitch is provided and for metric taps, the approximate thread count is shown based on the pitch.

    Get Price
  • 6Pcs HSS High Speed Steel Drill Bits Set 1/4' Hex Shank ...

    6Pcs HSS High Speed Steel Drill Bits Set 1/4' Hex Shank Metric Screw Thread Tap Twist Drill Bit M3 M4 M5 M6 M8 M10 Tap Drills. 4.8. 355 Reviews 623 orders. Enjoy special discounts! US $7.09 - 7.61 lot (6 pieces) US $14.77 - 15.85 lot -52%. Color: Quantity: Additional 2% off (10 lots or more)

    Get Price
  • Helicoil Type Thread Repair Kit M5 M6 M8 M10 M12 Twist ...

    Find many great new & used options and get the best deals for Helicoil Type Thread Repair Kit M5 M6 M8 M10 M12 Twist Drill Bits at the best online prices at eBay!

    Get Price
  • Drill Bit Size 0.05mm Pack of 5 2 Facet Point Drill Bit ...

    Drill Bit Size 0.05mm Pack of 5 2 Facet Point Drill Bit Point Angle 118° Micro Drill Bit,Drill Bit Drill Bit Size 0.05mm Pack of 5 2 Facet Point Drill Bit Point Angle 118° Micro,Micro Drill Bit, Drill Bit Size 0,05mm, Drill Bit Point Angle 118°, 2 Facet Point (Pack of 5) - -,New things that make life easy,Official online store,Get the best quality products from our store.

    Get Price
  • Screw To Drill Bit Size Chart and Tap and Drill ... - RodsShop

    2 days agou2002·u2002To help my readers out, I thought I would add this quick reference chart. This should help whenever you run into a situation you need to drill a pilot hole and are not sure the size bit. I also have included the chart for drill bit size per tap size. In case you need to drill a hole and thread it for a screw or bolt.

    Get Price
  • What size drill bit do I need for a quarter inch bolt ...

    2021-3-26u2002·u2002What size drill bit do I need for a 1/4-20 bolt? For a 1/4-20 bolt, the optimal drill bit size is #7 or 13/64th. How do I know what size drill bit to use? How to Choose Drill Bits by Size. Use a bit 1/64' smaller than the target hole size for softwoods. Use a bit exactly the same size as the hole when working on other materials.

    Get Price
  • Drill Bits: Buy Drill Bits Online at Best Prices in India ...

    Buy Drill Bits at Amazon India. A drill bit can be used to drill into wooden furnitures, glass, metals etc. There are an ample range of drill bits available for people to choose from. Go online and get the best quality of Drill Bits available at a competitive price range.

    Get Price
  • 131pcs Thread Repair Kit HSS Drill Helicoil Metric Set ...

    Re-thread tool full set include: insert installations, wire thread inserts, twist drill bits, thread taps, lug breaking tools,damaged thread repairs. Suitable for M5, M6, M8, M10 and M12, this kit creates a stronger internal thread in soft metals and protects tap threads from wear and damage.

    Get Price
  • What is the drill size for m4 tap? - AskingLot.com

    2020-5-29u2002·u2002Considering this, how do you determine tap drill size? As a rule of thumb, for Metric threads, the tapping drill can be calculated by subtracting the pitch from the diameter of the thread. eg for an M5x0. 75 thread the tapping drill is 5-0.75mm = 4.25mm. For Imperial (inch) threads the tapping drill size is calculated in the same way, diameter minus pitch.

    Get Price
  • M8 Drill Bits

    Drill and tap a variety of hole sizes. These taps and drill bits are for use on metal and plastic.. Carbon steel taps are for thread repair and occasional tapping.. High-speed steel taps and drill bits have a longer tool life than carbon steel. Uncoated high-speed steel taps and drill bits are strong enough for most jobs but don't last as long as other high-speed steel taps and drill bits.

    Get Price
  • What size drill bit do you need for a m8 bolt?

    2020-5-27u2002·u2002Choose a drill bit that corresponds to the necessary pilot hole size for the wall plug you intend to use. In other words, use a 5.0 mm drill bit for a yellow plug, a 6.0 mm drill bit for a red plug, a 7.0 mm drill bit for a brown plug, or a 10.0 mm drill bit for a blue plug.

    Get Price
  • How Big drill bit do i need to drill with a M8 Bolt ...

    2020-6-17u2002·u2002If the bolt is an M8, ( M8 X 1.25 pitch) that you are working with then use a 6.70mm drill bit or Decimal .2638 drill bit or 7.40mm drill bit. If you are working with (M8 X 1.0 pitch) then use a 7.00mm drill bit or .2756 decimal drill bit or a 19/64 drill bit .These specs are for someone tapping and drilling Hopefully this info will be useful and help someone in the future!

    Get Price
  • Metric Tap and Drill Bit Size Table - SC Fastening

    2017-6-28u2002·u2002M8 x 1.0 7.1mm M10 x 1.5 8.7mm M10 x 1.25 8.9mm 11/32 M10 x 1.0 9.1mm M12 x 1.75 10.5mm M12 x 1.5 10.7mm 27/64 M14 x 2.0 12.2mm M14 x 1.5 12.7mm M16 x 2.0 14.2mm 35/64 M16 x 1.5 14.7mm M18 x 2.5 15.5mm M18 x 1.5 16.5mm M20 x 2.5 17.5mm M20 x 1.5 18.5mm M22 x 2.5 19.5mm M22 x 1.5 20.5mm M24 x 3.0 21.0mm M24 x 2.0 22.0mm Metric Tap and Drill Bit ...

    Get Price
  • Thread - Drill & Tap Chart

    2021-2-20u2002·u2002Thread Size: Tap Drill (mm) Thread Size: Tap Drill (mm) Thread Size: Tap Drill (mm)

    Get Price
  • How Big bit do i need to drill with a M8 Bolt?

    2011-11-7u2002·u2002M8 is a thread for a bolt where the thread is machined form a 8mm diameter bar. If you want to drill a hole in a metal component to tap a hole to match the thread then drill 6.8mm diameter. if you want to drill a hole in a wall and bond a M8 thread in place drill a 8mm hole. If you want to use an expanding bolt - look on the packet as they all ...

    Get Price
  • Metric Tap and Drill Bit Size Table - Bolt Depot

    Tap Metric Drill US Drill; 3mm x 0.5: 2.5mm-4mm x 0.7: 3.4mm-5mm x 0.8: 4.3mm-6mm x 1.0: 5.2mm-7mm x 1.0: 6.1mm: 15/64' 8mm x 1.25: 6.9mm: 17/64' 8mm x 1.0: 7.1mm ...

    Get Price
  • What size drill bit for re-tapping 8 mm?

    2015-7-8u2002·u2002Click to expand... The rule for all metric threads, for an 80% thread, is OD - one pitch, in this case 8 mm - 1.25 = 6.75. M6 is 6mm - 1mm = 5mm tapping drill. M10 - 1.5 = 8.5mm. Look up any free chart for metric threads and this is how it is worked out. If it is a highly stressed thread, better than 80 % is recommended, but after reaching 3 x ...

    Get Price
  • What size drill bit do I need for an M10 bolt? – AnswersToAll

    2021-4-27u2002·u20021 What size drill bit do I need for an M10 bolt? 2 Is an M12 bolt 12mm? 3 What drill bit size is M8 bolt? 4 What size drill bit do I need for a M8 Rawl Bolt? 5 Should you pre drill coach screws? 6 Are coach screws strong? 7 How big a pilot hole should I drill? 8 Do you drill pilot holes all the way through? 9 What is a counterbored hole?

    Get Price
  • Concrete Anchor Drill Bit Size Chart? - Haener Block

    What size hole do I drill for a 3/8 concrete anchor? Drill a 3/8 ' hole into the concrete using a carbide-tipped bit that meets ANSI Standards B212. 15. Drill the hole a 1/2″ deeper than the anchor will penetrate the concrete, making sure the minimum embedment requirements of 1-1/2″ is met. The hole can be drilled while the fixture is in ...

    Get Price