6Pcs Telescopic Gauge Set 8mm-150mm Adjustable Inner Diameter Gauge

• DOUBLE-ACTION HANDLE: The double-action handle is firmly fixed on the contact plunger and automatically self-centers

• MEASURING RANGE: The measuring range is 8-150mm,-assist in the quick inspection of holes, grooves, and grooves up to 6 inches deep

• SCOPE OF APPLICATION: The telescopic spring-piston in the hole (or groove) can be used for inner diameter detection, used in conjunction with a micrometer or caliper, and has a knurled locking device

• TOOL STEEL MATERIAL: The ends of the two contacts are made of heat-treated steel, and finished to a certain radius, so as to leave a proper gap on the smallest hole the gauge will penetrate

Specification:

• Product: 6pcs/set of telescopic gauges 5/16"- 6"

• Size A: 5/16" - 1/2" (8mm to 12.7mm)

• Size B: 1/2" - 3/4" (12.7 to 19 mm)

• Size C: 3/4" - 1-1/4" (19 to 32 mm)

• Size D: 1-1/4" - 2-1/8" (32 to 54 mm)

• Size E: 2-1/8" - 3-1/2" (54 to 90 mm)

• Size F: 3-1/2" - 6" (90 to 150 mm)