deyi 10pcs set plating titanium cobalt twist drill bit

...10pcs 1-10mm Cobalt High-speed Steel Twist Drill Bit for Stainless Steel 10pcs in one set, diameters are: 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm Surface treatment: plating titanium Cutom package is available High quality material, sharp and durable Product 10pcs Set Cobalt High-speed Steel Twist Drill Bit Material High-speed Steel, Cobalt Quantity 10pcs/ set Type Twist...

...Cobalt Drill Bits Standard Twist Drill BitsFor Drilling Metal 1. HSS cobalt drill set is suitable for hardened steel and has excellent cutting performance. The blades are hardened and polished to improve sharpness,and precise cutting does not shake,suitable for cutting hard metals, such as stainless steel, cast iron, super alloys, titanium alloys, hard plastics and wood 2. M35 cobalt drill bit set can effectively drill...

... Drill Bit set For Metal Drilling 1.This Saw Drills is using for drill Plaster and Platic or PVC board. 2.Suitable for thin wood, wood, aluminum, plastic plates pull grooving. 3.These sawtooth bits work great in making a smooth hole & trench-cutting. ​