Boring bar blank SK 40 - 63 - 250Application: For the manufacturing of special tools. Note: Cone and flange hardened and grinded. Soft body for later processing. 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

Measuring surfaces are precision ground for accuracy

Without the illustrated cutting tools

With ball bearing clamping nut All holders are made of forged steel

All tool sizes can be combined

Collets sealed for high pressure cooling 120 bar

with cooling channels

DIN 1835 form A+B+E and DIN 6535 form HA+HB+HE

carbon steel

prevents chip clogging

Sealing capacity up to 80 bar

Coolant pressure up to max

With retaining screw