This looks seem common stainless steel bit, it is good to fight oxidation function, stabler and firm, use function is powerful, the operation is more smooth. Water of this water borer gets bit, can accomplish strike wall of dozen of concrete air conditioning quickly, power is fuller, wear-resisting performance is good. Trigonometry broach, agree with electric drill of use alloy handgun, color can be imitated, character cannot be surmounted, sharp and durable knife head is designed. Starting a hole of bimetallic of igneous ox M42 implement, the hard alloy material of hard usage is qualitative, the adoption of craft of lens face polish, not only beautiful very practical still. New-style 4 blade 4 chamfer broach is involve one kind those who cut via is get to raise Luo Zuan head on all sorts of lumber, the starting a hole of reamer of starting a hole of door lock drawer with very good character implement. This ceramic tile - the use starting a hole such as stone material implement broach, use function is powerful, work efficiency is taller, can use for long, material has pledged. Bei Li M35 contains bit of fried dough twist of cobaltic straight handle, iron box is packed, more show class, make aluminous metal of stainless steel iron only, sexual price is compared super tall 1.