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19PC HSS straight shank twist drill angle iron stainless steel special cobalt-containing twist drill bit set

DIN338 Jobber Length M35 HSS Cobalt Drill Bit for Stainless Steel Metal Hardened Steel Drilling Brocas Broca Twist

Drill Bit Set Metric 99Pcs DIN338 Titanium / Black HSS Twist Drill Bit Set For Steel In Metal Box Kit

High Quality HSS Stainless steel drill bit twist drills with hex shank or round for hard metal drilling

Manufacturer Titanium Hss M35 M2 4341 Twist Drill Bits For Metal Drilling