Material: YG8 alloy (drill), 45# carbon steel
Chamfer material: 45# steel
Rod type: Round rod
Color: Silver + orange
Rod diameter: 8mm
Blade material: carbon steel
The package includes:1 x drill bit
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.
