Compression collet DIN6343 173E. Round design: hardened and ground. Tension bridging max. 0.1 mm of nominal diameter. Rotational accuracy: Ø 1-10 mm = 20 µm, Ø 11-30 mm = 30 µm, Ø 31-60 mm = 40 µm. Ø up to Ø 8 mm smooth bore; from Ø 8.5 mm with cross grooves. Other versions and complete sets available on request.