Tiain Coating Cobalt Drill Bit Set, 29Pcs Multifacet Tip M35 High Speed Steel Bi
? Multifacet Tip Design? HSS cobalt drill bit set for hardened steel has a special design of multifacet tip at the head, which greatly improves...
AIMLENTOOL 115Pcs Cobalt Drill Bits Set M35 HSS 135 Degree Tip Twist Jobber L
Enhanced M35 Alloy Material: These drill bits contain 5% Cobalt alloy steel, which increases wear resistance and durability. Industry grade 6542 high speed steel drill...
