Superior Electric Aftermarket Circular Saw Replacement Blade Clamp Washer / Flange. Replaces Skil part numbers 1619X02969, 1619X0125, 2610901964. Compatible with: Skil: HD77 Type 17 Worm Drive Saw (Skilsaw 77) HD77M (F012HM7702) 7 1/4" Magnesium Worm Drive Skilsaw SHD77 (F012SD7700) 7 1/4" Worm Drive Skilsaw SHD77 (F012SD7705) 7 1/4" Worm Drive Skilsaw SHD77M (F012SD7702) 7 1/4" Magnesium 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 HD5860 (F01258600A) Worm Drive Skilsaw HD77-72 7-1/4 Worm Drive Saw w/Twist Lock HD77 (F012HD77LA) Circular Hand Saw SHD77M (F012SD7712) Circular Hand Saw HD77M (F012HM7700) Circular Hand Saw MAG77-75 7-1/4" Skilsaw Bosch: 1677M (0601677039) 7-1/4" Worm Drive Saw 1678A (0601678039) 7-1/4" Worm Drive Saw 1677MD (0601677139) Circular Saw 1677MDT (0601677239) Circular Saw 1677C-100 (0601677168) Circular Saw 1677DC-100 (0601677190) Circular Saw