3-12mm 4-12mm 4-20mm Step Drill Bit Titanium Plating HSS Straight Groove Coated Wood Hole Cutter Cone Drill Power Tools Set

Specifications:
3-12mm Step Drill Bit(10 Step:3,4,5,6,7,8,9,10,11,12mm)(Hexagon shank)

3-13mm Step Drill Bit(11 Step:3,4,5,6,7,8,9,10,11,12,13mm)(Hexagon shank) 
4-12mm Step Drill Bit(5 Step:4,6,8,10,12mm)(Hexagonal shank / Triangle shank)

4-20mm Step Drill Bit(9 Step:4,6,8,10,12,14,16,18,20mm)(Hexagonal shank / Triangle shank) 

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

Features:

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.
The main advantages of the spiral groove step drill compared to the ordinary straight groove step drill are its strong chip removal ability, better guidance, and smoother cutting.

Scope of application:
Cutting materials: thin iron plates with a thickness of 4MM can be processed, aluminum materials, insulating plates, thermal insulation plates, PVC plates, and wood plates within 5mm.
One drill bit can make holes of various specifications.
For many friends who need to drill hardened steel and stainless steel materials, we recommend you to use.

Note:
1. Manual measuring, please allow a little 1 ~ 2mm error, thank you.
2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please allow a little color difference.

Package Include:
1/3Pcs x Step Drill bit