99Pcs Cobalt Drill Bits Set for Stainless Steel Metal HSS-Co Cobalt Bit Titanium

16x 1/16" HSS Titanium Coated Twist Drill Bits. - HSS is the most commonly used material for knife pin tools. - 16x 5/64" HSS Titanium Coated Twist Drill Bits. - 15x 3/32" HSS Titanium Coated Twist Drill Bits.

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