SECURE & TIGHTEN ANY ACCESSORY Easily secure flap disc sanders, grinding wheels, chainsaw blades (single or in tandem), carbide discs, wire brushes, masonry blades, polishers and buffing wheels. The Universal Nut fits all 5/8” or 14 mm spindle thread shafts, including Ryobi®, DeWalt®, Porter Cable®, Milwaukee®, Black & Decker®, Hitachi®, Makita®, Bosch®, Fein® and other makes of electric and pneumatic power tools, including angle grinders, sander/polishers and sander/grinders. MISPLACED YOUR BOTTOM DISC FLANGE? The Universal Flange will securely hold all of your 7/8” (22mm) center hole single accessories on the power tool. The cutaway sides make it easy to release a tight flange with an adjustable wrench or pliers. The Universal Nut replaces different size 2 pin spanner wrenches for a simple and secure fit.