The Clip-N-Spin clevis is a small stainless steel interchangeable blade clevis that is more durable, spins truer and is easier to use than anything on the market. Once the blades have been assembled, it’s virtually impossible for them to come off, eliminating the possibility of blade loss. The Clip-N-Spin is offered in 2 sizes to accommodate just about any blade size and any situation. Size 1 2 Length (top to bottom) 0.202" / 5.13mm 0.240" / 6.10mm Coil Hole Diameter 0.042 0.042 Blade Size 1 - 4 4.5 - 7