3 Flute 4-12mm 5-23mm Step Drill Bit TiAlN Coated HRC62-65 HSS-Co M35 Cobalt Step Drill Triangular Shank Fashion

Description

3 Flute 4-12mm 5-23mm Step Drill Bit TiAlN Coated HRC62-65 HSS-Co M35 Cobalt Step Drill Triangular Shank
Description: 
3 Flute 4-12mm 5-23mm Step Drill Bit TiAlN Coated HRC62-65 HSS-Co M35 Cobalt Step Drill Triangular Shank. 

Specification: 
Material: M35 Cobalt(HSS-Co). 
Coated: TiAlN Coated. 
Hardness: HRC62-65. 
Flute: 3 Flutes. 
Shank: Triangular Shank. 
Grooves: 3 Spiral Grooves. 
Quantity: 1 Pc x Step Drill Bit. 
Size: 
4-12mm: 4,5,6,7,8,9,10,11,12mm. 
5-23mm: 5,7,9,11,13,15,17,19,21,23mm. 

Features: 
– Suitable for 1mm stainless steel plate, 3mm iron plate, steel, copper, plastic, wood plate. 
– 3 slot, 3 spiral slot design: 
Large chip removal, fast heat dissipation, fast drilling, low vibration, high stability and high drilling accuracy. 
– Triangular shank design, suitable for many types of electric drills. 
– HSS-Co/M35: 
4241 quenched high speed steel material, the hardness is the same as 6542 material. 
– Industrial-grade TiAlN Plating: 
1. Form Al2O3 protection cover, fit for high speed drilling. 
2. Can work without coolant. 
3. Hardness up to HRC62-65. 
4. Life service 2-3 times longer than common HSS-Co M35 step drill. 

Package Included: 
1 x 3 Flute Step Drill Bit