Includes (1) 2610321608 On/Off Switch. New, Bulk Packed. Genuine OEM replacement part. Consult owners manual for proper part number identification and proper installation. Please refer to list for compatibility. Compatible with: Skil models: HD5525 TYPE 2 (F01255250A) 6-1/2 in. Circular Saw, HD5550 TYPE 1 (F012555099) 7-1/4 in. Circular Saw, HD5575 TYPE 2 (F01255750A) 7-1/4 in. Circular Saw, HD5575 TYPE 1 (F012557599) 7-1/4 in. Circular Saw, HD5657 TYPE 2 (F01256570A) 7-1/4 in. Circular Saw, HD5657 TYPE 1 (F012565799) 7-1/4 in. Circular Saw, HD5660 TYPE 2 (F01256600A) 8-1/4 in. Circular Saw, HD5660 TYPE 1 (F012566099) 8-1/4 in. Circular Saw, 5825 TYPE 2 (F01258250A) 6-1/2 in. Worm Drive Saw, HD77 Type 17 Worm Drive Saw (Skilsaw 77), HD77M (F012HM7702) 7 1/4" Magnesium Worm Drive Skilsaw, SHD77 (F012SD7705) 7 1/4" Worm Drive Skilsaw, SHD77M (F012SD7707) 7 1/4" Magnesium Worm Drive Skilsaw, HD77M-72 (F012HM7772) 7 1/4" Magnesium Worm Drive Skilsaw, 5860 (F012586099) Circular Saw, 5550 (F012X55099) 7 1/4" Skilsaw, HD5860 (F01258600A) Worm Drive Skilsaw, HD77-72 7-1/4 Worm Drive Saw w/Twist Lock, Bosch models : B5610 (0601655935) Circular Saw, 1658 (0601658039) 7-1/4" Circular Saw, 1677M (0601677039) 7-1/4" Worm Drive Saw, 1678A (0601678039) 7-1/4" Worm Drive Saw, 1656 (0601656039) Circular Saw, B5700 (0601656039) Circular Saw, B5700 (0601656135) Circular Saw, 1656 (0601656139) Circular Saw, 1677MD (0601677139) Circular Saw, 1677MDT (0601677239) Circular Saw, 1677C-100 (0601677168) Circular Saw, 1677DC-100 (0601677190) Circular Saw, B5700 (0601656035) Circular Saw, B5600 (0601655035) 7-1/4" Circular Saw, B5600 (0601655169) 7-1/4" Circular Saw, 1655 (0601655039) Circular Saw, 1655 (0601655139) Circular Saw