Combi shell mill holder BT 50 - 40 - 70Application: For mounting milling cutters with transverse or longitudinal groove. Delivery: With retaining screw, driving ring and feather key 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

With drivers

In order to achieve an optimum sealing the tool must be clamped on the complete length of the ground drill of the collet

Battery :1

vertical and lateral

Clamping accuracy at the centre 0

- Especially suitable fore wire EDM

After mounting

The tapered tool holder is thus optimally

prevents chip clogging

right angularity: 0

Repeating accuracy 0

which can cause high frictional forces on the thread flanks