Finishing shell reamer 85 H7 NRNb DIN 219 HSS

Technical data of the 85 H7 push-on reamer

- working diameter D (H7) - 85 H7 mm

- total length L - 90 mm

- length of working part l -63 mm

- diameter of the clamping hole d - 40 mm

- number of teeth Z - 14

- tolerance 85 H7 - lower dimension min. 85,00 mm; upper dimension max. 85,030 mm.

Finishing shell reamer for metal fi 85

Finishing shell reamer 85 H7 NRNb, with a section of 85 mm, in accordance with the 219 A standard. It is a machine reamer, a push-on shank finisher, with straight chip grooves. It is designed for finishing cylindrical holes, with the required higher cutting tolerance class - H7. It can be used to enlarge the diameter of the hole, to obtain a better quality of the machined surface, to improve roughness and also to achieve perfect dimensional conformity of the hole with the design. Slip-on 85 machine reamers from our offer are made of modern HSS - High Speed Steel. Thanks to the properties of this steel, the reamers are characterized by increased cutting parameters. They can be used on conventional and CNC numerical machine tools. They are suitable for machining carbon steels, metals, nonferrous metals, metal alloys, hardenable plastics. Their advantage is that they are highly resistant to severe cutting conditions, including the high temperature generated by high-speed cutting.