Oxford? Precision 3 Point Internal Micrometer Sets

Designed to self-centre, for accurate measuring of bores. Extension rods for measuring 170mm deep on 11-20mm and 220mm deep on 20-40mm. Satin finish, fitted with knurled ratchet stop.



Contents: Micrometers: 20 - 25mm, 25 - 30mm, 30 - 35mm, 35 - 40mm. Calibration Ring: 25 & 35mm. Slotted Screwdriver. spanners x 2.