Description
GARANT Diabolo ball nose slot drill with special geometry and carbide for hard machining.

Application
For copy milling at a 1.5 deg taper angle.

Features
Type H.
Two cutting edges.
30 deg helix.
Ground recess.
TiAlN coating.
Radius contour tolerance +/-0.005 mm.

Advantages
High precision and stable cutting for hard machining.

Product Data
Product type: Diabolo Solid Carbide Ball Nose Slot Drill HPC
Article family: 207372
Size: 8 mm

Dimensions
Diameter: 8 mm
Cutting length Lc: 9 mm
Length L1: 32 mm
Neck diameter D1: 7.8 mm
Overall length L: 120 mm
Shank diameter Ds: 10 mm
Length L2: 60 mm
Intermediate diameter D2: 9.3 mm
Feed fz <65 HRC: 0.06 mm

Cutting Data
Steel <500 N/mm^2: 200 m/min
Steel <750 N/mm^2: 190 m/min
Steel <900 N/mm^2: 170 m/min
Steel <1100 N/mm^2: 150 m/min
Steel <1400 N/mm^2: 110 m/min
Hardened steel <55 HRC: 100 m/min
Hardened steel <60 HRC: 80 m/min
Hardened steel <65 HRC: 65 m/min

Notes
Taper angle 1.5 deg.