Starrett Bore Gauge Set 10-18mm – engineering-gauge.co.uk
Sealey Dial Bore Gauge Set | Dial Indicators
Neoteck Bore Gage Set Digital Indicator Dial Bore Gauge (2"-6"/0.0005") Measurement with Self-Centering Dial, Carbide Anvils, and Insulated Grips for Deep Engine Cylinder Measurement : Amazon.co.uk: Business, Industry & Science
DM Three-Point Digital Bore Gauge Set (6-12mm & 12-20mm) – engineering-gauge .co.uk