6Pcs Set 5/16- 6inch Precision Telescopic Gage Micrometer Bore Measurement Ruler Tool

Features: 1. Durable and long service life. 2. Made of stainless steel materials. 3. B E C F A D 6 piece set of gift box suit. 4. Easy to carry, fine workmanship. Specification: -Condition: New -Material: Stainless Steel -Color: Silver -Measurement Range: 90-150 mm -Precision: 0.01 -Size: 20 x 16 cm -Quantity: 6 Pcs Measuring Range: 8-12.7,12.7-19,19-32,32-54,54-90 & 90-150mm 5/16''-1/2'' 1/2''-3/4" 3/4"-1-1/4'' 1-1/4''-2-1/8'' 2-1/8''-3-1/2'' 3-1/2"-6''. How to use: 1. The plunger of the gage expand from the center to the diameter of the hole or width of slot being measured. 2. Locked in place by a knurled knob. 3. The hole size is found by measuring over the two contact point with a micrometer or caer. Package includes: 1 Set 6 pcs Precision Telescoping Gage 8-150mm Details pictures: