Solid carbide NC spot drill 20mm 90°
Version:
Exactly central ground point. Easy spot drilling and high shape accuracy of the centre hole. Sturdy due to short flutes.
Application:
Point angle 90° for spot drilling and countersinking in one operation when a drill of smaller dia. is used afterwards.
Note:
Use the speed for the actual hole dia. (not generally the speed for the drill outer dia.).
ER-Collet ER32 | 470E | < 15µm | O 12 - 11
Ring gauge | 62mm ring gauge-accuracy DIN 2250
Shrink chuck 4,5° HSK 40 – 16 – 90
Application:
For mounting tools with straight shanks.
Note:
Toolholders suitable for induction-, contact- and hot air shrink units. O 3, 4, 5 with h4-tolerance and O 6 O 32 with h6-tolerance
For O 3, 4 and 5 mm only solid carbide tool shanks must be used!
- All holders are made of forged steel
- Specific, low warpage hardened
- Surface hardened HRC 58~60
- Hardening depth 0,8mm~0,9mm
- Taper angle tolerance < AT 3 according to DIN 2080
- Surface roughness Ra < 0,4 µm
- Tensile strength in the core of min. 800 N/mm? after DIN
- All functional surfaces fine machined
ER-Collet with cooling channel holes ER20 | 428EC | < 15µm | O 8
HSS-E spiral flute taps fine thread M16 12×9 P=1,5 DIN 374
Application:
1. Thread configuration with a special design, prevents overfeeding, thin thread and pitch diameter oversize.
2. Flute geometry with special design, better chip evacuation, prevents chip clogging, improves thread quality
3. Excellent performance on various work material: Stainless steel, carbon steel, alloyed steel, tool steel