ER-Collet chuck BT 40 - 2/20 - 70 | ER 32Application: 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

200 x 63 x 18

5 with h4-tolerance and Ø 6 – Ø 32 with h6-tolerance2

SK 30 without coolant exit bores on the end faceDelivery:

5 with h4-tolerance and Ø 6 – Ø 32 with h6-tolerance5

- for easy determination of the reference point on CNC and conventional machines

Suitable for internal coolant

Functional parts hardened and ground

Additional screw for DIN 2080 tools included

E1= 40 pieces

bei Ø 6 – Ø 32 mm = h238

For mounting straight-shank tools and inclined flat according to DIN 1835 form E (Whistle Notch)

For clamping nuts OZ-system