Hydraulic expansion chuck HSK 50 - 25 - 120Application: For mounting straight shank tools acc. DIN 1835 form A+B+E and DIN 6535 form HA+HB+HE (larger than dia. 20 mm only with reduction sleeve). Delivery: Without wrench All holders are made of forged steel Specific, low warpage hardened Surface hardened HRC 58~60 Hardening depth 0,8mm~0,9mm Surface roughness Ra < 0,4 m Tensile strength in the core of min. 800 N mm after DIN All functional surfaces fine machined

For sealing tools with internal cooling

sleeves and tool arbors

Hardened and grinded all around

The clamping screw incorporates a through hole

For the coolant supply through the centre of HSK toolholders

Suitable for internal coolant

Thread confi guration with a special design

Collets sealed with seal for IC DIN 6499 B (ISO 15488 B) ER-system

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

clamping depth = 52

Zero-setting at any position for incremental measurement

Metallic sealed Collets for internal cooling (applicable up to 100 bar)