Description: Knurled knob at the end of handle for adjusting hole size gauge range Reading is obtained by measuring over contact points with a micrometer Gauging ball surface is hardened, and full round with a flat bottom Rhomboids skidproof handle, for better measuring 4 pieces (A, B, C, D) in a set, with plastic pouch Specification: Material: Metal, nickel plating Color: Silver Measurement Range: A: 3mm-5mm (1/8"-1/5") B: 5mm-7.5mm (1/5"-3/10") C: 7.5mm-10mm (3/10"-2/5") D: 10mm-13mm (2/5"-1/2") Size (Overall Length x Ball Diameter x Tail Diameter): A: Approx. 76x3x5mm/ 2.99x0.12x0.20 inch B: Approx. 79x5x5mm/ 3.11x0.20x0.20 inch C: Approx. 125x7.5x5mm/ 4.92x0.30x0.20 inch D: Approx. 105x10x5mm/ 4.13x0.39x0.20 inch Package Includes: 4 Pieces of Adjustable Full Ball Type Small Hole Gage Note: Please allow slim measuring error due to manual measurement, make sure you do not mind before you bid. The colors may be different for the different display, please understand