Finishing shell reamer 70 H7 NRNb DIN 219 HSS

Technical data of 70 H7 push-on reamer

- working diameter D (H7) -70H7 mm

- total length L - 80 mm

- length of working part l -56 mm

- diameter of the clamping hole d - 32 mm

- number of teeth Z - 14

- tolerance 70 H7 - lower dimension min. 70,00 mm; upper dimension max. 70,030 mm.

Finishing shell reamer for metal fi 70

Professional finishing shell reamer 70 H7 NRNb, a slip-on finisher, size 70 mm, complying with DIN 219, designed for the final machining of through-hole and blind cylindrical holes. The machine reamers offered in our store are dedicated to both individual customers and large manufacturing plants. They are suitable for machining holes made early with drill and peeler. This type of reamers can be used for very precise machining in tolerance class H7, without additional tool guiding. They are manufactured according to the latest standards, from a special high-quality HSS high-speed steel. It is a steel characterized by increased cutting properties, high strength for heavy cutting conditions, as well as higher resistance to mechanical damage of blades. Slip-on reamers 70 are suitable not only for enlarging the diameter of holes, but also for improving the geometry of holes, bringing out their axes and increasing the accuracy of machining.