Internal burnishing tool HBI 20

externalroller

• Tool designed for burnishing internal and/or external surfaces • For burnishing holes from Ø22 mm x 70 mm deep • Head provided with an internal spring system that regulates the pressure making it homogeneous on all parts • The roller is supported between axial an radial bearings • Usable on workpiece of different types of materials with hardness up to 45 HRC • Provided with a B type burnishing roller made of HSS and hardened to 62 HRC, with polished surface Ra<0.4