Ryobi ZRP421 ONE Plus 18V Cordless Lithium-Ion 4-1/2 in. Angle Grinder (Bare Tool) (Certified Refurbished) 18V motor for the toughest applications Tool-less guard makes positioning guard easy On-board spanner wrench conveniently located in the side handle for easy access GripZone overmold for improved comfort with a positive grip 3-position side handle allows handle to be placed in most comfortable position