3 Pieces Of Metal Hole Drilling Tools with Auger Bit (4-

Titanium coating reduces friction and heat.
High-speed steel pedal drilling has higher quality and durability than ordinary twisted drilling.
These drills are very suitable for creating smooth, clean and round holes. Suitable for perforated plate metal, iron plate, aluminum plate, brass, wood, plastic and so on.
This drill set includes 3 sizes (4-12mm, 4-20mm and 4-32mm) to meet your different needs.
Please remember that only M35 step drilling is suitable for stainless steel.

Specification: black spiral groove three-piece set
Surface treatment: nitrogen treatment (increase hardness and wear resistance)
Handle shape: triangular round handle
Handle diameter: 6mm/8mm/10mm.
Weight: 230g
Total length:
4-12mm length: about 65mm/2.60 inch weight 18.5g
4-20mm length: about 76mm /2.99 inches and 47.5g
4-32mm length: about 101 mm /4.02 inch weight 167.6g
Note: 1. Hand drill and bench drilling can be used for drilling in these steps.
2. When drilling, water injection is used for cooling, which can effectively prolong the service life of the drill bit.
3. The recommended drilling rate is 250-400 RPM.
4.You can use our step drilling machine to drill holes within 5 mm.
5. Please remember that only M35 step drilling is suitable for stainless steel. Never use these HSS 4241 step drills to drill stainless steel!
Colour:black
Material:steel

Package Contents:
1 x 4-12mm worm bit
1 x 4-20mm worm bit
1 x 4-32mm worm bit

Only the above package content, other products are not included.
Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.