Utoolmart Hole Gauge Set 1/8 inches - 1/2 inches Small Telescoping Full-Ball Ball Gages 4 Pieces

Features: The body is knurled for easy gripping. Locking device at the end of hole gauge for adjustable measuring range. This hole gauge is availble for measuring holes and grooves in woodworking, metalworking and patterning applications. Steps for Usage: 1. Loosen the hole gauge counterclockwise, put it in the item need to be measured. 2. Tighten clockwise until it matches the diameter of the item being measured. 3. Measuring the inner diameter with a caliper to get the diameter of the item. Package Includes: 1 Set x Hole Gauges