Opening devices, magnetic drill bits, center pin, imported drill hole device

< span class = "line1 "> Nitto stem hollow drill bit or hole, also known as core devices, drill bits Category: high-speed steel drill bits, carbide drill, carbide drill bits; cutting depth: 35MM  or  50MM ; for drilling: Universal handle ALFRA Alpha (Europa), ECO BDS Paterson (Beatties), etc., harmonics handle FEIN German overtones, Nitto Nitto handle for drill. Size: 12MM to 100MM; the main material with high-speed steel drill class; PM class; Carbide class. Types, complete specifications, applicable to various brands of imported magnet drill (magnetic drill) and the general drilling, milling, boring and so on. The products and supporting the use of imported magnet drill, drilling efficiency is the common bit 8 ~ 10 times.