1. Double action handles are rigidly attached to the plungers and are automatically self-centering.
2. Assist in quick checking of holes, slots and recess up to 6 inch deep.
3. The ends of both are head treated steel and ground to a radius allowing proper clearance on the smallest hole the will enter.
4. Constant spring tension delivers uniform pressure.
5. Super quality, high rigidness, good wear , durable in use.

Spec:
Features:
Double action handles are rigidly attached to the plungers and are automatically self-centering.
Assist in quick checking of holes, slots and recess up to 6 inch deep.
The ends of both are head treated steel and ground to a radius allowing proper clearance on the smallest hole the will enter.
Constant spring tension delivers uniform pressure.
Super quality, high rigidness, good wear , durable in use.
Specification:
Condition: Brand new
Material: Tool steel
Color: Shown as picture
Measuring Range: 8-150mm
Accuracy: 0.1
Quantity: 6Pcs/Set (ABCDEF)
Scope of Application: Telescopic spring piston in the hole (or groove), can conduct inner diameter detection, used with micrometer or caliper, with knurled locking device.
Package List:
1 Set Telescopic (6pcs)