11.6mm Titanium Coated M42 High Speed Steel 8% Cobalt (HSS) Twist Drill Bit M4x30mm+6mm Great for making different kinds

Great for making different kinds of DIY crafts

- Lock Tongue Size: 10 x 5 x 8mm / 0

1 x DC 12V to DC 19V 15A Voltage Converter

Total Weight: 158g

11.6mm Titanium Coated M42 High Speed Steel 8% Cobalt (HSS) Twist Drill Bit M4x30mm+6mm Great for making different kindsM42 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