Ahr/8 Groz Adjustable Hand Reamer, H4, 11.9 – 13.5Mm

The Groz range of Adjustable Hand Reamers are extremely useful precision tools for any engineering or auto-repair shop.
Just 16 sizes cover diameters ranging from 9.5mm — 56.35mm (3/8” — 2.7/32”).
Suitable for use on ferrous or non ferrous metals.
The reamer blades are made from High Speed Steel, accurately hardened 60 – 64 HRC and relief ground.
Each adjustable reamer has a chamfer or lead on the front end of diameter 0.004” – 0.019” according to size, which helps to make a quick start in reaming operation.
Reamers expand by loosening one adjusting nut and tightening the other.
Cocentricity within : 30 microns.