Two pit two groove chisel head can be used in any Bingsi square pit hammer
Because the two pit two slot electric hammer, chuck has two bit fixed ball. Four hole hammer, the four pit is four bit fixed ball. Before this dozens of root drill bit is changed, the electric hammer drill at idle when there will be little center, recommend the use of matching bits.
Tolerable。 There will be a little bit loose, the premise is simple processing, the corresponding two sides with grinder grinding groove width, let the hammer inside a collet by two ball groove width.
