This is a nut that threads onto a standard 5/8-11 shaft. If you're having trouble with that, then you need more than this product has to offer. "Name" brand nuts serve the same purpose as these. I buy good angle grinders. No problem if you use this for multiple brands. Negative reviews are most likely due to incompetent user error.
Energup 3.0Ah 40V MAX Replacement Battery For Black+Decker 40V LBX2040, LBXR36, LBXR2036, LST540 & More
40 Review
Circular saw Makita 5008MG, 1800 W blue/silver
68 Review
Linkstyle Universal Socket Wrench Set, 7Mm-19Mm Multi-Function Repair Kit With Drill Adapter Ratchet Gadget, Grip Hand Tools Gifts For Men Dad Husband Boyfriend DIY Handyman (4PCS)
44 Review
Set Of 2 VARSK Contour Gauges With Light (5" And 10"), Wide Shape Duplicator Profile Tool For Accurate Measuring Of Corners, Woodworking Templates, Tiles, And Laminate
45 Review
140Mm/150 Grit Diamond Needle File Set - 10 Piece HTS 101E0
30 Review
Sharpen Your Tools With HTS 101I0 6Pc 180Mm / 40-600 Grit Diamond Flat File Set
28 Review
Get The Job Done With DURATECH Flex-Head Ratcheting Wrench Set - 12-Piece Metric Set With Rolling Pouch
28 Review
RoverTac 14-In-1 Multitool Pliers With Safety Lock: Perfect For Camping, Survival, And Simple Repairs
29 Review