Indestructible Disc for Grinder, Indestructible Disc 2.0 - Cut Everything in Seconds, 4" x 1/25" x 4/5” Cut Off Wheels, Diamond Metal Cutting Disc for Angle Grinder (5-Pack) - Walmart.com
disc plough | PPT
The effect of the disc setup angles and working depth on disc harrow working resistance - ScienceDirect