Rod type: Round rod
The package includes:1 x drill bit
Rod diameter: 8mm
Material: YG8 alloy (drill), 45# carbon steel
Color: Silver + orange
Chamfer material: 45# steel
Blade material: carbon steel
Product selling point:
1. Application: Used for spiral countersunk hole of aluminum alloy
2. This step drill is used for countersunk holes and opening holes of aluminum screws.
3. It is durable, excellent material and fine workmanship.
4. Due to the surface spray treatment, the step drill has wear resistance.
