T51 2"	Diameter	Part No.
Button Bits	89mm	EYT51-00120
	102mm	EYT51-00121
	115mm	EYT51-00122
Coupling Sleeves	72mm	EYT51-00123

Other size are vailuable according to your requests. The Bit body (Retrac or no)and front design(Face face, drop center, convex or concave)  are made on your requests.