Product parameters: The outer diameter of the saw blade is 136mm, the center hole diameter is 20mm, the thickness is 1.6mm, the maximum speed is 7000RPM/min, the outer diameter of the gasket is 19.8mm, and the inner diameter is 16mm. Manual measurements, please allow slight errors. Compatibility: This product is compatible with Compatible with Makita DSS501Z Wide range of uses: This product has multi-functional uses and can be applied to cutting wood, plastic, aluminum, copper, non-ferrous metals, etc. Product list: Product include a total of 1Pc Circular Saw Blade, 1Pc Washer, which can completely meet your daily use needs and replacement. Please pay attention to the operating instructions of the corresponding equipment and the necessary protective clothing (safety glasses, gloves, etc.), Weight: 0.220462262 pounds, Manufacturer: OTOTEC