3 Point Internal Bore Micrometer Set 20 - 50mm
Set of 4 high precision Three Point Internal Micrometers for accurately measuring bores.
The self-centring measuring head consists of 3 laterally positioned carbide anvils offset at 120° intervals.
Their design allows these micrometers to measure down to 4mm of the bottom of a blind bore.
4 Micrometers: 20-25mm, 25-30mm , 30-40mm and 40-50mm
2 x 150mm Extension Rods
Resolution: 0.005mm
Carbide Anvils
Knurled Ratchet Stops
Satin Chrome Finish
2 Calibration Ring Gauges 25mm and 40mm,
and Adjusting Spanners
Part Number M312-068