Electric hammer drill four holes cross electric hammer drill

Description:

High grade alloy electric hammer drill, using high quality steel 40cr, and original raw YG8C carbide as raw material processing, and high quality raw material on the basis of high temperature quenching hardness is greatly enhanced, surface treatment plus series, made from the appearance and use of this product, than ordinary carbon steel drill bit more beautiful, longer service life.

Features:

Cross alloy head drill out holes are the standard round, more suited to the exact process; while the alloy out of a Word may be oval, more applicable to technology in General.