Tapping Head, Internal Coolant, Shank Diameter 25 mm, Tapping Range: M6-20

With minimum length adjustment MLA, by means of a damping element. Increases tool life of taps by up to 300 %. Internal coolant supply up to 50 bar. Secure clamping for ER collets in quick-change tapping collets. Run-out of shank taper to the tapping collet taper < 3 um. Application: On machining Centers with synchronised spindles. For compensating the difference in pitch between tap and synchronised spindle. For compensating the pitch tolerances of taps. Optional extras: ER collets, see No. 308881-309240 size ER11 / 16 / 25. ER tapping collets with square drive spigot, see No. 309399 309413 Size ER 11 /16 / 25. Quick-change tapping collets and extensions, see No. 338120 - 338142. See No. 308600 308806 for pull studs. See No. 309880 for coolant feed pipes for HSK. See No. 309890 for plug-in sockets for HSK. Note: Maximum speed 4000 rpm. Through-coolant: yes, with max. 50 bar Length compensation by compression: 0.2 mm Length compensation by tension: 1 mm External Dia D: 60 mm Internal Dia D1: 32 mm Overhang dimension A: 56 mm suitable for ER size: 25