7pcs 3-10mm Chamfer Drill Bits Set HSS 5 Flute Woodworking Countersink Drill Bit

Single Flute edge chamfer 90 Degree 

Heat treated & tempered high-carbon steel.

Use on steel, aluminum & other metals, plastic or wood 

Enlarge or countersink holes, deburr edges; 15-degree chamfer 

 

Material: HSS Drill 

Black chamfer drill body material: steel 

Dimension: 

3mm(Dia) x 60mm(L) 

4mm (Dia)x 75mm(L) 

5mm(Dia) x 85mm(L) 

6mm (Dia)x 93mm(L) 

7mm(Dia) x 10mm(L) 

8mm (Dia)x 11mm(L) 

10mm(Dia) x 12mm(L) 

 

Special designed steel counter sleeve countersinks or counter bores guide hole.

Adjustable counter sleeve depth with wrench.

Drill and countersink for wood screws without changing

Drilling length can be adjusted for various length screws simply by loosening and tightening the setscrew.

It is suitable for drilling machines with chuck, for drilling on hard wood or wooden floor.