This Screwdriver & Wrench Chain Saw Scrench are replacement part, Replacement part# 0000 955 0801. Replacement for 010 011 012 024 026 028 029 030 031 032 034 036 038 039 041AV 042 044 046 048 064 066 028AV 032AV 034AV 041AV 042AV 045AV 017 018 020 020T 021 023 MS240 MS260 MS270 MS280 MS290 MS310 MS390 MS340 MS360 MS360C MS440 MS460 MS640 MS650 MS660 023L 025 MS170 MS170C MS180 MS200 MS200T MS210 MS230 MS250 MS171 MS181 MS192T MS211 MS231 MS251 MS291 MS311 MS361 MS362 MS391 MS441 MS461 MS270 MS271 Chainsaw. If you do not confirm product information, please check product description. Wrench Sizes 13mm x 19mm; Sprocket Cover Bar Nuts size 20mm x 6.6mm x 7mm. Colour: silver Material: metal Package Contents: 10 x sprocket cover rod nut 1 x wrench Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.