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9 Σεπ 2018 · Drill size chart – inch and metric | Downloadable PDF. The most comprehensive guide to drill sizes anywhere on the web, with complete charts covering every size in metric, imperial and fractional measurements.
The drill size chart contains twist drill data for up to 1.0 inches in diameter. For typical mechanical tolerances that are achievable see: Drilling Tolerances Capabilities Chart ANSI Size Drill Bit 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.
Drill bits are the cutting tools of drilling machines. They can be made in any size to order, but standards organizations have defined sets of sizes that are produced routinely by drill bit manufacturers and stocked by distributors. In the U.S., fractional inch and gauge drill bit sizes are in common use.
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.
Drill bit sizes & dimensions chart or table featuring standard sizes measured in wire gauge number, letter, fractional and metric measurement systems.
2 Αυγ 2016 · DRILL SIZE CHART 0.2087 TO 1.0000 INCH RANGE Size in Size Designation inches Size Designation 7.2 mm 0.2835 9.40 mm 7.25 mm 0.2854 9.5 mm 7.3 mm 0.2874 3/8 inch Letter L 0.2900 Letter V 7.40 mm 0.2913 9.60 mm Letter M 0.2950 9.70 mm 7.50 mm 0.2953 9.75 mm 19/64 inch 0.2969 9.80 mm 7.60 mm 0.2992 Letter w Letter N 0.3020 9.90 mm
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