MattF
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they only go up to about 10mm thick no use in a bore though. there tapered not measure by length you slip them between a gap till it goes tight on the taper and it gives you the thickness needed .
Honestly, bore gauge.


Kennedy 15-30MM Taper Bore Gauge 1511B | at Zoro
Kennedy - 15-30MM Taper Bore Gauge available at Zoro.co.uk - UK's Leading Supplier of DIY Tools and Supplies'
www.zoro.co.uk