I have for sale a BRAND NEW 3-PIECE SET OF WRENCH, LOCKING NUT, AND BACKING FLANGE FOR MAKITA, MILWAUKEE (and others) ANGLE GRINDERS. I do not know what the thread pitch is on this set. All I know is that I bought it and it doesn't fit my angle grinder. I needed a 5/8-11 thread. I would suggest that you bring your grinder with you and try these pieces on it so that you will not be disappointed. The pins on the tightening wrench are approx. 20mm apart. Asking $3.99. Call 705-949-2701. Ask for Ron **** Note: If this ad is running, pkg. is still available