Description
Straight major cutting edges and a special flute profile ensure a good chip evacuation.
The robust cutter geometry ensures high-performance drilling with good process reliability.
A wide range of applications in steel materials thanks to a combination of tough ultra-fine grain carbide and an extremely wear-resistant coating.
Up to Dia. 1.9 with 4 facets, from Dia. 2 with relieved cone.

Product Data
Product type: Solid carbide high-performance drill, plain shank
Tool material: Solid carbide
DIN: 6537 K
Shank: DIN 6535 HA
Drilling depth: 4xD
Tolerance: h7
Number of cutting edges: 2
Point angle: 140deg
Coating: TiAlN
Internal coolant supply: 25 bar
Nominal Dia. Dc: 5/16 mm
L2: 29.1 mm
L: 79 mm
Dia. Ds: 8 mm
Feed (f), Steel <900 N: 0.18 mm/rev

Cutting Data
Steel <500 N: 115
Steel <750 N: 105
Steel <900 N: 85
Steel <1100 N: 80
Steel <1400 N: 60
INOX <900 N: 30
INOX >900 N: 25
GG(G): 90
GGG: 55

Note
Flute length Lc = L2 + 1.5 x Dc.
Versions with HB and HE shank are available at the same price as HA.
For HB shanks: use order no. 122502.
For HE shanks: use order no. 122503.