The thread plug gauge is applied to measure thread and external thread tooth pitch. The thread plug gauge, through quenching processing, strong hardness, head with a magnetic. Using rotary can be freely adjusted. Easy to use, light and delicate, with precise measurements and simple design, which can be widely used and . Features - Color: Silver. - Material: Steel. - Size: 11.10X2.00X1.50 cm/ 4.36X0.79X0.59 inch. - The screw pitch is made of stainless steel and it combines high strength, good resilience, elegant appearance. - The thread plug gauge has strong hardness and with a magnetic head through quenching processing, sturdy and . - This thread pitch gauge can be applied to measure external thread tooth pitch and thread. - Each gauge is clearly marked for convenient and easy reading. - This steel screw pitch gauge is small size and light weight, with simple design,can conveniently keep the in your pocket or tool bag. Package list: 4 x Thread Measuring Gauges