Stepped metal spiral drill bits 3pcs 4-12, 4-20, 4-32mm 14247

Stepped metal spiral drill bits 3pcs 4-12, 4-20, 4-32mm

Stepped metal spiral drill bits in sizes 4-12, 4-20, 4-32 mm, made of high-speed steel HSS, for drilling into sheet metal, plastic, or metal. The spiral drill bits are stored in a metal box.

Technical data:
Material: high-speed steel HSS 4241
Drill bit 4-12 mm: shank 6 mm, stepping every 2 mm
Drill bit 4-20 mm: shank 8 mm, stepping every 2 mm
Drill bit 4-32 mm: shank 10 mm, stepping every 2 mm