High speed steel drill bits, hard alloy drill bits, tungsten steel drill bits;
Cutting depth: 35MM, 50MM, or 100mm;
Specification: 12MM to 100MM; bit
The main materials are high-speed steel; Powder metallurgy; Hard alloy class.
Suitable for electric motors: magnetic drills/magnetic seat drills/drilling machines/lathes/milling machines, with a complete range of types and specifications, suitable for various brands of imported magnetic seat drills (magnetic drills) and general drilling machines, milling machines, boring machines, etc.
Common handle types for hollow drill bits: straight handle, universal handle, Nitto handle, overtone handle