The US PRO Blacksmiths Drill Bit Set features large diameter HSS drill bits, perfect for heavy-duty drilling tasks. With a reduced shank size, these bits are compatible with standard drill chucks,Reduced shank size so they can be used in standard drill chucksApplications: Steel, cast iron, Iron, sheet metal and non-ferrous metalsDrill sizes: 14, 15, 16, 18, 22 and 25mmShank size: 1/2" (12.7mm)Drill bit length: 152mm, Working length: 76mm
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