Counterattack Drilling Bit Set, Champfer HSS Bit Easy to Use for Chamfering, Browsing

Countersinks are made from good quality high speed steel which ensures a service life There are total six pieces of countersinks in sizes of 6.3mm, 8.3mm, 10.4mm, 12.4mm, 16.5mm, 20.5mm Great for chamfering, deburring and countersinking. Three flutes design provides small chip loads and quicker removal Features: Countersinks are made from good quality high speed steel which ensures a service life. There are total six pieces of countersinks in sizes of 6.3mm, 8.3mm, 10.4mm, 12.4mm, 16.5mm, 20.5mm. Great for chamfering, deburring and countersinking. Three flutes design provides small chip loads and quicker removal. They can discharge chip more rapidly and smoothly in the process of using. Suitable for board of low hardness(less than 25 degrees ) such as aluminum, wood, plastic and other soft material.  Specifications: Material: HSS Flute: 3 Head Diameter(mm)6.38.310.416.520.5 Shank Diameter(mm)5661010 Length(mm)3740394747 Package Includes: 6pcs x Countersinks