Spiral Sewn Buff Drum Is To Be Used For Metal Finishing On Numerous Surfaces Each Drum Is 4 Inches Wide And 4.5 Inches In Diameter / Max RPM 4000 Use With Solid Buffing Compounds Cloth Drum With Molded Abs Plastic Hub Fits 3/4" Keyed Shaft Experience superior metal finishing with the Eastwood Contour SCT Spiral Sewn Buff Drum. This 4-inch wide and 4.5-inch diameter drum is meticulously crafted for versatile use on various surfaces. Its spiral sewn buff design, coupled with a durable cloth construction and molded ABS plastic hub, ensures optimal performance. Compatible with solid buffing compounds, this drum is designed to operate at a maximum rotational speed of 4000 RPM. It fits seamlessly onto a 3/4-inch keyed shaft, making it an excellent choice for slow-speed buffers and variable speed angle grinders set to low speed.