12.5mm Titanium Coated M42 High Speed Steel 8% Cobalt (HSS) Twist Drill Bit M10*27 D50*H30 Overall Size: 50x45x18mm/1

Overall Size: 50x45x18mm/1

Widely used in printed-circuit board

Package Content: 5 pcs 50W 4

Application: Widely used in fixed glass or wood shelves

Headset Cable

12.5mm Titanium Coated M42 High Speed Steel 8% Cobalt (HSS) Twist Drill Bit M10*27 D50*H30 Overall Size: 50x45x18mm/1M42 steel is a super hard cobalt high speed tool steel containing 8% cobalt, with good toughness, high wear resistance, high cutting efficiency, and good hot hardness (Retains hardness even at high temperatures of the cutting edge.). Nanoscale gold titanium coating can apply lubricant better for smoother drilling and is more durable and corrosion resistant. Can greatly improves hardness, wear resistance, and reduces the coefficient of friction. Sharp