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WD31060-6PCS Flat Drill Bits ...
WD31060-6PCS Flat Drill Bits Set

Hex shank extension with quick change shank

Hex shank extension with quick change shank
Feature highlights：

Extension used for extra deep holes

Fits all wood spade drill bits with 1/4" hex shanks

Made of carbon steel
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specification

Hex shank extension with quick change shank

Four lengths available for 7/16”” (11.1mm) in shaft diameters. Connect to chuck end of shaft to increase the length of the bits.

For slef-feed bits, auger bits and hole saws with hex shank

Drill bit extension 3