Comparison : Item # 1183-77915, 5-3/8" x 20mm Metal Sawblade 30T Steel Worker Metal-Cutting Carbide Blades Sait Abrasives
Item # 1183-77917, 5-3/8" x 20mm Metal Blade 50T Aluminum Metal-Cutting Carbide Blades Sait Abrasives
Item # 1183-77920, 6-1/2" x 5/8" Metal Sawblade 40T Steel Worker Metal-Cutting Carbide Blades Sait Abrasives
Item # 1183-77921, 6-1/2" x 5/8" Metal Sawblade 48T Thin Metal Sait M.X. Metal-Cutting Carbide Blades Sait Abrasives
Item # 1183-77922, 6-1/2" x 5/8" Metal Sawblade 60T Aluminum Metal-Cutting Carbide Blades Sait Abrasives