8.8mm Titanium Coated M42 High Speed Steel 8% Cobalt (HSS) Twist Drill Bit 6.4mm To 11mm With a wide working temperature

With a wide working temperature range

Outside Diameter :

Usually used in Antennas

and many other marine and rough weather applications

26" (L x W x H)

8.8mm Titanium Coated M42 High Speed Steel 8% Cobalt (HSS) Twist Drill Bit 6.4mm To 11mm With a wide working temperatureM42 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