Advantage 4 1/2 x 5/8-11 Zirconia Flap Wheels 60 Grit 10 Pack Welding Tips It has metric threading

It has metric threading

Marks steel and other metals with an easily read but erasable mark

2 1/4" Opening

and most 110V MIG welding guns except Miller style

Flat soapstone is extremely fragile

Advantage 4 1/2 x 5/8-11 Zirconia Flap Wheels 60 Grit 10 Pack Welding Tips It has metric threadingThese Adavantage Zirconia Flap Discs are 4 1 2 inch diameter for use on small angle grinders. They are 1 2 inch thick with resin coated paper backing. The 5 8 11 metal arbor hub locks for added safety. The zirconia flap wheels are ISO 9001 certified, made in Germany and capable of 13,300 Max RPM. This 10 pack of zirconia flap discs for sale are 60 grit, which is medium coarse for sanding and polishing steel.