Standard High Precision And Low Price Drill Accessories Guide Bush

Product Introduction

Deep hole drilling Guiding bush used to guide the gun drills or drill bits break into the workpiece. at the begining of drilling process. The guiding bush has 2 types, hard steel and tungsten carbide type. noramlly the bush inner holes suggested to be 0.005-0.01mm begger than drill bit, to make sure the accuracy.