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: 11 - 14mm, 14 - 17mm, 17 - 20mm. Calibration Ring: 11 & 17mm. Slotted Screwdriver. Spanners x 2.