Description
For high-precision drilling with flat base up to 48 HRC. Diagonal drilling, countersinking, thin sheets and blind holes - all with one tool. Suitable for cross-drilled holes. Drilling with reduced burr.
Execution
- Right-cutting
- Helix angle 20°
- Flat drill bit 180°
- 2 cutting edges
- Double drill heel
- AQUA EX coating guarantees long service life through higher temperature and wear resistance (TiAlN multi-layer coating)
Notes
Centring hole or pilot hole is required. When drilling inclined surfaces, the rotation speed and feed rate must be adapted! See cutting data. Use only high-precision tool chucks.
Technical data
Brand: NACHI
Cutting material: VHM
Surface: TiAlN multilayer coating
Max. drilling depth (D): 4xD
Angle of the tip: 180 Degree
Coolant supply: Internal
Tool holding device: HA parallel shank
Cutting edge diameter: 20,0 mm
Shaft diameter: 20 mm
Chip flute length: 129 mm
Length: 195 mm
f steel 1000: 0,320 mm/r
Cutting direction: Right-hand cutting
Number of cutting edges: 2 PCS
Tolerance of shank diameter: h6
Cutting speed (aluminium long) suitability: 1
Cutting speed (aluminium short) suitability: 1
Cutting speed (brass long) suitability: 1
Cutting speed (brass short) suitability: 1
Cutting speed (bronze long) suitability: 1
Cutting speed (bronze short) suitability: 1
Cutting speed (cast) suitability: 1
Cutting speed (graphite/carbon-fibre reinforced) suitability: 3
Cutting speed (hard 55) suitability: 3
Cutting speed (hard 65) suitability: 3
Cutting speed (nickel) suitability: 3
Cutting speed (plastic) suitability: 3
Cutting speed (steel 1000) suitability: 1
Cutting speed (steel 1300) suitability: 1
Cutting speed (steel 700) suitability: 1
Cutting speed (super) suitability: 3
Cutting speed (titanium) suitability: 3
Cutting speed (VA mar) suitability: 1
Cutting speed (VA off) suitability: 1
Material to be processed: Universal use
Rockwell hardness, HRC: 45 HRC
Shank style: Cylindrical DIN 6535-HA
Usable length: 126 mm