Stepped metal spiral drill bits 3pcs 4-12, 4-20, 6-30mm 14235

Stepped metal spiral drill bits 3pcs 4-12, 4-20, 6-30mm

Stepped metal spiral drill bits 3pcs in sizes 4-12, 4-20, 6-30 mm made of high-speed steel HSS for drilling into sheet metal, plastic, or metal. The drill bits are stored in a metal box.

Technical data:
Material: high-speed steel HSS 4241
Drill bit 4-12 mm: shank 6 mm, step 1 mm
Drill bit 4-20 mm: shank 8 mm, step 2 mm
Drill bit 6-30 mm: shank 10 mm, step 2 mm