This HSS hole opener set includes sizes from 12mm to 35mm, designed for hole drilling on metal workpieces.
The annular cutter structure supports stable and helps with chip removal during metal drilling.
Made as hollow core drill bits, they fit most standard power drills and machining equipment.
Suitable for metal processing, equipment maintenance, industrial processing, and daily drilling tasks.
Multiple size options offer flexible usage for different hole diameter requirements in workshop applications.