• 【Specifications】Size: 4.5" x 4.5" x 4"(115 x 115 x 100mm); cross hole: 0.748"(19mm); material: silicon carbide, high-strength fibers, elastic fibers, and resin; product quantity: 2 pcs; suitable tools: burnishing polishing machines; suggested speed: 600 - 3800 rpm; grit: 40 grit; product weight: 1.32lbs; package weight: 2.65lbs
• 【Product Advantages】Surface conditioning drum is economical, durable, corrosion-resistant, and stable in performance. It resists clogging and won’t blacken, discolor, or suffer from heat-related damage.
• 【Suitable Tools】Surface conditioning tool 4 x 4 drum is designed for use with burnishing polishing machines. Compared to other abrasives, it is more suitable for surface treatment of large workpieces, featuring simple operation, labor saving, a large grinding area, and high efficiency. Moreover, it is equipped with a cross-shaped lock core, which makes it more stable and safer to use.
• 【Performance】Grinding Force: 40 grit > 60 grit > 120 grit > 240 grit > 320 grit (for the same grit, versions with sandpaper offer greater force than those without). Roughness: 40 grit > 60 grit > 120 grit > 240 grit > 320 grit. Wire Drawing Fineness: 320 grit > 240 grit > 120 grit > 60 grit > 40 grit. Glossiness: 320 grit > 240 grit > 120 grit > 60 grit > 40 grit. For 4x4 abrasive drum, lower grit numbers mean higher grinding force, faster efficiency, coarser wire drawing, greater roughness, and lower glossiness—while higher grits offer the opposite.
• 【Purpose】Surface conditioning drum is suitable for rough and finish machining on metal, wood, plastic surfaces. Rough Machining (40, 60 grit): They are typically used to remove surface impurities such as oxides, coatings, burrs, and rust, and leave straight, coarse textures. 120 grit is used for the transition from surface rough machining to finish machining. Finish Machining (240, 320 grit): They are used to create uniform, straight, and extremely fine surface textures, enhancing the workpiece’s glossiness, smoothness, and visual appeal.

Size: 4.5" x 4.5" x 4"(115 x 115 x 100mm); Grit: 40 grit; Cross Hole: 0.748"(19mm)

Material: silicon carbide, high-strength fibers, elastic fibers, and resin

Suitable Tools: burnishing polishing machines; Suggested Speed: 600 - 3800 rpm

Product Quantity: 2 pcs; Product Weight: 1.32lbs; Package Weight: 2.65lbs