Groz Drill Sleeve MT 4/3 (A Grade)

GZ08426 | Groz Drill Sleeve MT 4/3 (A Grade) The Groz Reduction Sleeves, also known as Drill Sleeves, are designed to adapt smaller morse taper shank tools to larger machine spindles. Manufactured from case-hardened Hi-tensile steel (20 MnCr5/SAE 8620) this range of sleeves is fully hardened with a ground finish both inside and outside. Precision manufacturing ensures perfect locking and concentric movement of the tool. The size is permanently marked on the tang for easy identification Specifications • Morse Taper Outside: 4 • Morse Taper Inside: 3 • Overall Length: 140 mm • Sleeve type: A Grade • Material: Case Hardened Steel • Surface finish - External taper: Ground • Surface finish - Internal taper: Ground • Body hardness: 54-58 HRC • Tang hardness: 54-58 HRC