Proxxon (23353) Torque Wrench Micro Click 200 S, 1/2 Inch Large, clearly legible scale for exact adjustment of desired torque by turning knurled adjustment ring on end of handle Ratchet mechanism with reversing lever for changing ratcheting direction Automatic quick release clearly audible and perceptible click upon reaching set torque High accuracy of plus/minus 3 percent Micro-click torque wrenches are precision tools and are packaged in sturdy and practical plastic storage box