[MATERIAL]: It is made of carbon steel with chrome plating on the surface.

[PACKAGE INCLUDE]: Range: 5/16" - 6" (8mm to 150mm),
6PCS in total (

• 1 gage: 5/16 - 1/2" range x 4.20" overall;
• 1 gage: 1/2 - 3/4" range x 4.40" overall;
• 1 gage: 3/4 - 1-1/4" range x 4.40" overall;
• 1 gage: 1-1/4 - 2-1/8" range x 5.85" overall;
• 1 gage: 2-1/8 - 3-1/2" range x 5.85" overall;
• 1 gage: 3-1/2 - 6" range x 5.85" overall);

Ethylene plastic bag packaging.

[OPERATION METHOD]: Use the gauge to expand in the hole to be measured, lock it in place, and then take it down, and measure with a micrometer or caliper to determine the final hole size.

[HIGH PERFORMANCE]: The rigid handle and double-acting design (automatic centering) can quickly check the internal dimension. The spring tension is constant and the hand feel is even.

[APPLICATION]: It is used to obtain the exact size of holes and slots, which is suitable for factories, schools, offices, and other places.