WEILER FLAP DISC 4.5" 60G 5/8-11 NUT|WOLVERINE TYPE 27|Wolverine™ Flap Discs are designed to deliver fast material removal and consistent performance at a great value. Formerly Vortec Pro, Wolverine gets the job done for fabrication professionals, aggressively grinding and blending carbon and stainless steel in every-day applications. Made in the USA with global materials.