90 ° /100 ° /120 ° /130 ° countersink angle of the public / American standard full specification supply.
Processing material: T700 composite material.
Product advantages: High durability of PCD cutting edge; Good surface roughness index retention; High thread precision, quick change of drill bit; The wear resistance of guide post is better than that of imported products.
Diameter range of general guide column: φ 2~ φ 16。
Accept the specification customization of special guide column diameter and special countersink angle.