Pagoda drill bit universal metal reaming stainless steel special hole opener $ 9.00 Features: This is the new HSS steel big step cone drill bit titanium alloy drill bit set, Made of high-quality HSS steel and plated with titanium to reduce friction and heat. Very suitable for cutting holes of various materials, including thin steel, brass, wood, plastic, etc. Specification: Type: Pitch drill Material: high speed steel Coating: Titanium Stem: triangle/round cut: 4-12mm 4-6-8-10-12mm 5 steps 4-20mm 4-6-8-10-12-14-16-18-20mm 9 steps 4-32mm 4-6-8-10-12-14-16-18-20-22-24-26-28-30-32mm 15 levels
