Kinik Grinding Wheel Size: Diameter x Thickness x Hole :6 x 1/2 x 1 (150mm x 13mm x 25.4mm) Color: Orange Grit 400 & 600 Max RPM: 4244RPM 33m/s Suitable for grinding, sharpening, deburring, and finishing Designed for workshop and industrial applications The Kinik Grinding Wheel 6″ x 1/2″ x 1″ is designed for precision grinding, sharpening, deburring, and finishing applications. Its durable abrasive construction provides consistent grinding performance for workshop and industrial use.