SPECIFICATIONS

4-12 4-20 4-32 mm HSS Titanium Coated Step Drill Bit Drilling Power Tools for Metal High Speed Steel Wood Hole Cutter Cone Drill

High-speed steel, high quality with good durability for you to use 

Professional drill for deburring, chamfering, elliptic hole enlargement 

Suitable for punch holes through sheet metal, steel plate, aluminum plate, brass or wood 

This drill bit set includes 3 sizes(4-12mm, 4-20mm, 4-32mm), which meet your different needs perfectly 

 

Specifications: 

Finish: Titanium 

Type: Step Drill 

Head Type: Hexagon Shank 

Material: High-speed steel 4241 

Surface Treatment: Titanium coated 

 

Length: 

5 Step Bit: 4-12mm Length: Approx. 6.7cm/ 2.64" 

9 Step Bit: 4-20mm Length: Approx. 7.4cm/ 2.91" 

15 Step Bit: 4-32mm Length: Approx. 10.2cm/ 4.02" 

 

The 3 Bits Sizes: 

15 Step Bit: 4-32mm (4,6,8,10,12,14,16,18,20,22,24,26,28,30,32mm) 

9 Step Bit: 4-20mm (4,6,8,10,12,14,16,18,20mm) 

5 Step Bit: 4-12mm (4,6,8,10,12mm) 

 

Package include:

1x step drill bit