ER-Collet chuck BT 30 - 1/7 - 70 | ER 11 | MiniApplication: 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

Standard type without safety clutch

Perforated plate for mounting accessories

Easy to read dial face

Toolholders suitable for induction-

In machining centres (machines with automatic tool changers)

Scale reading by nonius: 3

the control lamp lights up = identification of the reference point

Construction: Hardened steel

clamping depth = 50

Suitable for:

Resolution:

For cleaning internal tapers on machine spindles