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

For DCONWS = 60 only with four fixation screws according to DIN 912

Ratchet handle gear types : 72 teeth

Ceramic probe insert

break-proof and impact-resistant ABS plastic

80kg holding force

prevents over-feeding

Mit mechanischem Spannkraftverstärker

Vernier: 5

better process security and productivity

Test certificate

Concentricity: ± 0

For the chucking of quick change adaptors for taps