Solid carbide drills with coolant holes, type N, 8xD, diameter 7,8 mm
S20122.078Solid carbide (SC)
|D||d||l1||l2||Item code||On stock|
|P.1 | Free-cutting steels, general construction steels||≤ 600 N/mm²|
|P.2 | General construction steels, steel castings||≤ 850 N/mm²|
|P.3 | Tool steels low alloyed||≤ 1100 N/mm²|
|P.5 | Tool steels high alloyed||≤ 1100 N/mm²|
|M.1 | Corrosion- and acid-proof steels||≤ 750 N/mm²|
|M.3 | Corrosion- and acid-proof steels||> 850 N/mm²|
|K.1 | Cast iron (≤ 240 HB)||≤ 820 N/mm²|
|K.2 | Cast iron (> 240 HB)||> 800 N/mm²|
|S.1 | Chrome-nickel alloys||≤ 1500 N/mm²|
|S.2 | Titanium, Titanium alloys||≤ 1250 N/mm²|
|H.1 | Hardened materials (< 54 HRC)||≤ 1920 Nmm²|
|H.2 | Hardened materials (54-60 HRC)||1920-2210 Nmm²|
Clamping elementmore +
Plain straight shank according to DIN 6535 HA.
Type Nmore +
Normal profile of flute, normal core, point angle 118°. Drills made of HSS Co mildly strenghtened core, point angle 130°.
Point angle 135°
Coating AlTiNmore +
Offers similar qualities as TiAlN, but even higher hardness. Substanial temperature stability. Designed for the most demanding applications. It provides excellent result mainly when combined with HSSE-PM steels (ASP 2030). The milling cutters manufactured from this steel are coated with AlTiN as standard.
Point shape - form Nmore +
Conical lip relief, DIN 1412 form N.