What's the difference between attachments?

	Resins - These are diamonds usually (but not always) intended for polishing or light grinding. They are shaped like pancakes and have a Velcro back for attaching to the grinder head. These are available in 3" Dry, 3" Wet, and 5" Combo.
	Metals - These diamonds are noticeable more aggressive then resins. They also have a Velcro backing, and can be run wet or dry. Running them wet increases their aggressiveness and life.
	Rings - Rings can have either resin or metal diamonds on them, and are build for specific lines of grinders.
	Trapezoid - The most aggressive type of diamond available. Usually used for removal of the initial coat of dirt, oil, or thin mill coating (including thinset/mortar). Because they are so much more aggressive, these screw to the head (instead of Velcro).
	PCD's (Poly-Carbonate Diamonds) - Used for heavy stock removal, these tear through a coating by making deep, wide scratches. Really hard coatings like epoxy, densified concrete, and mortars are the most popular applications for this product.
	Cup Wheels - Similar to rings, cup wheels are used on hand grinders and edgers. Because of the high speed at which hand grinders and edgers spin, cup wheels are extremely aggressive and can generally flatten high spots faster then standard size floor grinders.

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Rings Cup Wheels Accessories

(Acrobat PDF Document)
Diamonds & Accessories Sheet