ITEM NAME:8-150mm (5/16in-6in) Telescoping Gauge set, 6pcs / set, internal gauge, Hol C6K1 8-150mm (5/16in-6in) Telescoping Gauge set, 6pcs / set, internal gauge, Hol C6K1 Model Number: QST8-150mm DIY Supplies: Metalworking Measuring range: 8-150mm or 5/16in to 6in under uniform spring tension, the plunger of the gage expand from the center to the diameter of the hole or width of slot being measured and then locked in place by a knurled knob, the hole size is found by measuring over the two contact point With a micrometer or caliper The telescoping gauges are used to measure internal diameter or internal through-groove of the machine by comparative method. Name: Inner diameter expansion gauge Color: silver Material: carbon steel Package Contents: 6pcs * Telescopic measuring instrument set Only 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.
