(6.8Mm) 10Pcs 5.2/5.5/6.0/8.5Mm M35 High Speed Steel Containing Cobalt Twist Drill Bit Tool For Metal Stainless Drilling 6112211942179

GreenZech

Features: - [High hardness]: M35 is made of cobalt-containing high-speed steel, with high hardness and strong wear resistance, specially made of...