Features:

Sufficient quantityEach set contains 6 pieces of internal gauges of different sizes, with measuring range of 8-150mm, enough quantity for various of repair and DIY works.Multi functionDesigned to measure the inner diameter of a round and cylinder item, widely used on various woodworking, repair, DIT, etc.Easy to useSimply plug in the item and lock the telescopic spring, the rotary switch on the bottom is designed for adjustment, clockwise for tightening and anticlockwise for loosening.Easy to storeAttached with a storage bag of multi-slot design to store every caliber tidily and individually, great to store and carry out.Superior materialMade of high-quality carbon steel material, rustproof and anti-corrosion, of good hardness and durability, with long service life.Specifications:

Type: inner diameter gaugeMaterial: carbon steelItem Color: silverMeasuring Range:A: 0.8-1.27cm/0.31-0.5inch B: 1.27-1.9cm/0.5-0.75inchC: 1.9-3.2cm/0.75-1.26inch D: 3.2-5.4cm/1.26-2.12inchE: 5.4-9cm/2.12-3.54inch F: 9-15cm/3.54-5.9inchGauge Size:

A: 11*1.27cm/4.32*0.5inch B: 10.5*1.9cm/4.13*0.75inchC: 10.5*3.2cm/4.13*1.26inch D: 12.5*5.4cm/4.91*2.12inchE: 12.5*9cm/4.91*3.54inch F: 12.5*15cm/4.91*5.9inch(L*W)Storage Bag Size: 20*16*2cm/7.86*6.29*0.79inch(L*W*H)  

Package Included:

6 x Telescopic Gauge

Detail Pictures: