patent design:only need 5 degree to turn a nut compared to ordinary wrench need 30 degree to turn a nut ultra-thin design:suitable for application in narrow spance that other spanners cann¡¯t use. Ref. No. Spec. L(mm) package 6201 8mm 140 10/300 6202 10mm 160 10/300 6203 12mm 173 10/200 6204 13mm 180 10/200 6205 14mm 200 10/200 6206 15mm 211 10/100 6207 16mm 220 10/100 6208 17mm 230 5/100 6209 18mm 240 5/100 6210 19mm 250 5/60 6211 21mm 260 5/40 6212 22mm 273 5/40 6213 24mm 298 5/40