Boring bar blank BT 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

Hardened and grinded all around

Calibration certificate

Setting ring not included in delivery - optionally available

- Rustproof

Collection of collets

vice clamps4 pcs

Without wrench

Zero setting at any position

For measuring the groove diameter of shafts

- Determining the reference points (calibration) of optical presetting devices

chip breaking

longer tool life