Features:
*The drill has 2 functions of reaming and chamfering, which can improve the processing efficiency, and the second stage angle is 180 degrees or 90 degrees.
*For example, for drilling 2 holes, the installation of six angle nut, ., can replace more than drill.
*The countersunk head is made of HSS, which can process metal or non-metal products below 30 degrees for HRC,such as cast iron, tool steel, copper and aluminum, alloy steel, iron, die steel and so on.
*Due to batch reasons, the total length may be different, which does not affect the use.
Specifications:
Product name: Spiral step drill bit
Material: HSS
Color: Black
Optional Degrees: 90, 180
Optional Size: for M3, , M5, M6, M8, M10,
Suitable for: Drilling, Chamfering
Quantity: 1 Pc
Package Contents:
1 × Spiral step drill bit