ER-Collet chuck BT 30 - 3/26 - 70 | ER 40Application: For mounting straight shank tools in collets. Delivery: With balanced clamping nut 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 m Tensile strength in the core of min. 800 N mm after DIN All functional surfaces fine machined

Surface roughness Ra < 0

For machining centres without synchronous spindle

Ausführung:

- Bed height H: 0

Completely made of steel

T-nuts 18mm

All collets with outside form DIN 6499 (ISO 15488) can be clamped

Quick change adaptors with safety clutch are supplied with a predefi ned torque

Integrated pull-down mechanism

Exchangeable carbide tipped scriber

Excellent concentricity in the system (chuck + collet + clamping nut)

For clamping nuts OZ-system