PART OF CATALOG
Shell mill holder BT 40 – 27 – 40
Application:
For mounting milling cutters with transversal groove.
Note:
d = 40/d = 60: For large diameter face mill cutters with four additional threaded holes according to DIN 2079.
SK 30 without coolant exit bores on the end face
Delivery:
With drivers, cross head retaining screw and cylinder head retaining screw for cutters with central coolant. For d = 60 only with four fi xation screws according to DIN 912.
- 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-Precision collet | stainless steel ER20 | 428ESP | < 5 µm | O 5,0 - 4,5
Ring gauge | 58mm ring gauge-accuracy DIN 2250
HSSE twist drill 135° 4,0 mm DIN 338 | TIN coating
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