Page 836 - Tungaloy Catalog

Chipbreakers

General purpose chipbreaker for almost all applications.
Features low cutting forces and allows stable drilling.

DJ type For general purpose
Suitable for cutting a wide range of work material
Central insert Peripheral insert
Identification for central Identification for
edge side peripheral edge side
Chipbreaker for
Chipbreaker for central peripheral edge
edge
The high rake angle and high
The chipbreaker has a thick
width and gentle curves. This breaker wall reduces cutting forces
prevents chips from packing. and improves chipbreaking.

Low cutting forces and long Wiper design
tool life Can improve surface finish
Bumps and grooves formed on the rake face
reduce cutting forces and deliver longer tool life.

NEW DS For drilling stainless and gummy steels
Provides exceptional chip control

Central insert Peripheral insert
Identification for central Identification for
edge side peripheral edge side
Dimple
Creates smooth chip curling.

11 Reinforced land Optimum chipbreaker
Prevents fracture width and contact area
and chipping. Provides excellent chip
Drilling Tools System to avoid wrong insert clamping control.

TungSix-Drill has been Correct clamping Incorrect clamping
designed to ensure OK Central insert Central insert Pheripheral insert Central insert
correct insert clamping. seat seat
Incorrect clamping of
central and peripheral Peripheral
Central insert insert
insert is not possible
because of the screw Central insert Central insert
seat
seat
hole location. Insert hole fits screw hole Insert hole doesn't fit screw hole
Note: Please check the
central and peripheral insert
faces before setting the
insert.
Correctly clamped ! Screw can’t enter screw hole

11–20 Relating Cutting Conditions Technical reference
pages
(11-14 )
(14-1)