Inner Diameter Gauge Telescopic Small Hole Measuring Gauge

The knurled knob at the end of the handle for adjusting hole size gauge rangeA reading is obtained by measuring over touch points with a micrometerGauging sphere surface is hardened, and full round with a flat bottomRhomboids skidproof handle, for better measuringTensile column for the 65 manganese steel heat treatment, no rust, long service lifeMethod of Use: for small holes, slits, and grooves of the measurement, used with micrometer or caliper, with knurled locking device.DIY Supplies: WoodworkingModel Number: Small hole gaugeFeeler Style: StraightFeeler Type: Imperial FeelersNumber of Blades: 1-10 BladesColour:silverMaterial:carbon steelPackage Contents:4 x Inside GaugeOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.