Highcool 3Pcs Wrench Set, 1/4'' 3/8'' 1/2'' Drive Click Wrench, Dual-Direction Reversible 72-Tooth Ratchet Handle, 20-240 IN.LB, 5-45 FT.LB, 20-160 FT

3-Piece Wrench Set: 1/2" wrench: 20-160 ft-lb, length 16.53 inches/42 cm; 3/8" wrench: 5-45 ft-lb, length 12.2 inches/31 cm; 1/4" wrench: 20-240 in-lb, length 9.84 inches/ cm Material: The wrench is made of steel with manganese phosphate , designed to withstand heavy use and resist rust and corrosion, impact resistance, durability, and longer service life Instruction for Use: Pull down the knob and select the desired value, after that release the button and the knob will automatically return to lock the value and then you can begin working Waiting for the task to complete, you can set the value to the for future use. (The 'click' sound under 5 Nm is faint and might not be easily detected) : The ratchet has ±3% calibration tolerance and can be adjusted to 0.1 nm. The is etched and clearly visible for long-term readability.