5pcs Hss Hole Opener 15-30mm High-Precision Wear-Resistant Metal Sheet Punch Drill 15mm/17mm/18mm/23mm/30mm

Description

After special heat treatment, the cutting edge is sharp and the strength is extremely high. Computer indexing of blade teeth, high-speed grinding and forming. It has high precision, stable cutting, special impact resistance and good wear resistance. The cutting effect of black and non-ferrous metals is excellent, and it can also process stainless steel round pipes below 3mm. It can cut on uneven workpieces, such as holes on various pipes.