Description

【Range】5/16″ – 6″ (8mm to 150mm), Stainless Steel Construction.
【Using】Gage expands in a hole to be measured , locks in place and then removed to determine final hole size using a micrometer or calipers.
【Fine Workmanship】The contact point is hardened tool steel and is fine ground within the final measuring radius
【Smooth and constant spring tension】 The spring is equipped with a knurled locking knob and a knurled fixing area.
【Package】Includes 6 sets, with vinyl case

Specifications for this item:

Spring with locking knurled spiral

The gauge extends in the hole to be measured (lock it in place, then use a micrometer or caliper to remove it to determine the final hole size).

Constant spring tension makes the hand feel even

The contact point is hardened tool steel and finely ground within the final measuring radius

Get the exact size of holes, slots, holes or grooves

Rigid handle and double-action design (self-centring), which can quickly check internal measurement results

with vinyl case

Range: 5/16″ – 6″ (8mm to 150mm),

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