HCS 60T 4-1/2" 4.5 inch Metal Plastic Circular Saw Blade for Rockwell Rk3441k, Worx WX429L 9.5mm/ 3/8" arbor RW9282 - Amazon.com
Rockwell RK3441K Circular Saw, 5 Amp, 4-1/8 Inch Diameter Blade, 3/8 Inch Arbor, 1-1/8 Inch at 45 Degrees, 1-11/16 Inch at 90 Degree Depth Cutting: Electric Circular Saws (845534011548-1)
Pack of 3 wood TCT 24T 4-1/2" 4.5 inch Carbride TCT Circular Saw Blade for Rockwell Rk3441k, Worx WX429L RW9281 - Amazon.com
Rockwell OSCILLATING SAW BLADE HSS RW8958 | Parts Town