Drill Size Chart - Machining - Manufacturing Cost Estimation
387 rowsu2002·u2002Drill 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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