Stahlwille 1/2"DR #20 Ratcht Insert Tool Q.R. 14x18mm Reversible SW725/20QR 58253020Quick Release ratchet insert tool Reversible, with Quick Release safety lock. size 4: 22 teeth, sizes 5 and 10: 30 teeth, size 20: 36 teeth Maximum continuous loads of ratchet insert tools are limited to: 725QR 4 40 N m, 725QR 5 and 725QR 10 100 N m, 725QR 20 250 N m. Limits must not be exceeded when these insert tools are used with torque wrenches of larger capacity.