Cutting Blade Lawn Edger Universal Attachment Edger Attachment Design The Lawn Edger Attachment features a hardened steel cutting blade that is 9 in.The purpose for Edging around walkways, curbing, flower beds and other similar areas. Blade 2 Teeth 9 In. steel TRIARC with A 1 In. arbor center hole. Note The constant torque gearbox is rugged and durable. Notelowering the wheel will decrease the cutting depth. Raising the wheel will increase the cutting depth. Universal Edger Attachment Compatibility Fits Attachment capable units from Ryobi, Greenworks, Remington, Craftsman, Yard Machines, TroyBilt, Yardman, Snapper, Bolens, Murray, Kobalt, and most other major brands. Powerhead coupler accepts 1 inch AL diameter tube Drive shaft connector Square shape .205 Female Attachment drive shaft Square shape .200 across flats.