Description
3-flute drill, specially developed for use at very high feed rates.
Outstandingly suitable for machines with high installed power and stable operating conditions.
• Special cutter geometry with stable cutting edges and large clearance at the centre enables very high feed rates.
• The patented tip is optimised for chip flow and generates low cutting pressure with good chip breakage.
• With 145° tip angle for low burr formation when drilling through holes.
• The sector-leading technology of the chisel edge guarantees optimum self-centring behaviour and permits spot drilling on irregular surfaces.
• 3 guide chamfers guarantee a stable exit from the hole and an exact roundness of the hole.
Product Data
Product type: GARANT Master Steel Feed solid carbide drill
Material: Solid carbide
Standard: DIN 6537 L
Shank: Plain shank DIN 6535 HA
Diameter tolerance: h7
Shank tolerance: h6
Number of cutting edges: 3
Point angle: 145°
Through-coolant pressure: 25 bar
Type: HPC
Coating: TiAlN
Drilling depth: 6×D
Ø Dc: 12 mm
L2: 53 mm
L: 118 mm
Ø Ds: 12 mm
Feed (f): 0.5 mm/rev
Cutting Data
Steel <500 N: 160 m/min
Steel <750 N: 140 m/min
Steel <900 N: 130 m/min
Steel <1100 N: 110 m/min
Steel <1400 N: 90 m/min
Steel <55 HRC: 60 m/min
INOX <900 N: 60 m/min
INOX >900 N: 50 m/min
Ti >850 N: 40 m/min
GG(G): 130 m/min
GGG: 80 m/min
ISO Code
Alu plastics: N
Alu: N
Alu cast >10% Si: N
Steel <500 N: P
Steel <750 N: P
Steel <900 N: P
Steel <1100 N: P
Steel <1400 N: P
Steel <55 HRC: H
Steel <60 HRC: H
Steel <65 HRC: H
Steel <67 HRC: H
INOX <900 N: M
INOX >900 N: M
Ti >850 N: S
GG(G): K
GGG: K
Note
Flute length Lc = L2 + 1.5 × Dc.
Form HB and HE supplied at the same price as HA.
For HB: order with No. 122726.
For HE: order with No. 122725 + 129100HE.