Include calibration certificate with traceable serial number. DURABLE - Reinforced ratchet gear head constructed from hardened, heat treated Chrome Vanadium alloy steel. LONG-LASTING - Rust & corrosion protection with our unique and newly invented Electro-Black finish treatment. PERFORMANCE - Features an easy-to-read, highlighted yellow print dual-range scale. Identify the markings even in low-light conditions. COMFORTABLE - Comes with a reversible ratchet head that drives in both directions and measure torque in a clockwise direction. ; **Specification:**Drive Size: ;1/2-Inch Minimum Increment: 1 FT-LB Range - ;Nm / KG.M: 28-210 / 2.9-21.4 Accuracy: ;CW4% Length: 46 CM Patents: ;a. Easy twist handle (effort reducer) | b. High contrast scale (HiViz) Ratchet HeadCr-V, 24 Tooth Gear ; ; Package Includes: 1x ;1/2" ;Drive Torque Wrench 1x ;1/2" to ;3/8" ;Adaptor 1x ;1/2" ;125mm Extension Bar 1x Maunal 1x Storage Case