China Manufacturer Roll Forged Black&Gold Straight shank Twist Drill Bit for metal drilling

Feature highlights：

Twist Drill Bits,roll forged with black & gold finished surface, 118 degree point

The drill bits ideal for drilling on mild steel ,copper, Aluminum, Zinc alloy etc.

Drill bits are made of High speed steel

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specification

China Manufacturer Roll Forged Black&Gold Straight shank Twist Drill Bit for metal drilling

Finish: Black & gold finshed, other surface treatment is also available, please consult with widetop sales person

Hot roll-forged flute with special heat treatment gives additional toughness with increased durablity of the drill bit

Named package are available for this drill bits

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