Machinist Drill Bit Chart

Centre drill bit sizes. The drill size chart is listed fractionally by alphabetically and numberically. The drill size chart can be used for any drill machine and this chart would be used near the drill or milling machine.
machinist drill bit chart

The Web Page Contains The Following Machinist Drill Bit Size

How To Define The Over All Length Of A Drill Bit Based On The

Charts

They are commonly used to drill lathe centres and spotting drills iemarking holes to guide twist drilling.

Machinist drill bit chart. The charts have the dimensions for the drill size chart listed several different ways to help convert to the different units. Fractional and metric sizes ref. Machinist drill bit size table ansi drill size chart iso metric drill bit size table. These specialist drill bits are used for drilling centre holes at two different angles 60 degrees and 90 degrees.

Drill size decimal equivalent tap size 19 39 32 5938 64 5 6094 41 8 6250 64 21 6406 43 32 6562 34 10 64 11 6719 45 16 6875 34 16 64 23 7031 47 32 7188 64 3 7344. Millimeter to inch conversion. The decimal equivalents of the diameters are shown in both english and metric units. Download our free structures textbook and analysis manual or view the online version aa sb 001.

The drill size chart below contains all commonly used centre drill bit sizes. Machinist drill bit size chart ansi size drill chart iso metric drill size chart engineers edge. 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 web page contains the following.