Feature

●4 Spiral Flute Design: Four spiral flutes ensure faster and smoother drilling. It feels like cutting butter with a hot knife
●DURABLE & LONG LASTING: The step drill bit made of M35 cobalt is durable and will stand up to a long time use without easy wear out
●9 Step Drill Bits: Hole Diameter 4mm/0.16", 6mm/0.24", 8mm/0.3", 10mm/0.4", 12mm/0.47", 14mm/0.55", 16mm/0.6", 18mm/0.7", 20mm /0.8in
●89HRC Surface Hardness: Step drill bit with 89HRC surface hardness can drill harder materials and achieve higher drilling speed
●Wide application: step drill bit is suitable for stainless steel, metal plate, wood, plastic, aluminum plate, copper and other metal plates


Description

1.4 Spiral Flute Design: Four spiral flutes ensure faster and smoother drilling It feels like cutting butter with a hot knife.
2.9 step drill bits: drill diameter for 4mm/0.16", 6mm/0.24", 8mm/0.3", 10mm/0.4", 12mm/0.47", 14mm/0.55", 16mm/0.6", 18mm/0.7", 20mm. /0.8in.
3.Durable and Durable: The step drill bit made of M35 cobalt is durable and can withstand long term use without easy wear out.
4. 89HRC Surface Hardness: 89HRC surface hardness step drill bit can drill harder material and achieve higher drilling speed.
5.Wide application: step drill bit is suitable for stainless steel, metal plate, wood, plastic, aluminum plate, copper and other metal plates.

Spec:
Item Type: Step Drill Bit
Material: M35+Cobalt
Drilling Diameter: 4, 6, 8, 10, 12, 14, 16, 18, 20mm
Shank Diameter: 1/4"

Package List:
1 x Drill Bit.
1 x Storage Box