Spott-Hogg Edge comes with three blades - no mounting screw. Blade numbers .008, .010 and the one on the rest is a .010W. Had to go with a different rest as I switched to 150 gr. broadheads. $100.00 Have nine 100gr. Wasp Drone broadheads. Never hunted with. Comes with replacement blades. $90.00 In Saskatoon