01｜Product Overview

3M 7440B non-woven abrasive hand pad is a high-performance aggressive grinding consumable compounded with aluminum oxide abrasives inside elastic synthetic fiber matrix. It features strong cutting power and excellent structural toughness, not easy to break even under high pressure operation. It supports both dry grinding and wet grinding. The unique open mesh three-dimensional structure brings cool cutting performance, effectively avoiding overheating, discoloration and thermal deformation of workpieces. It can be operated directly by hand, or matched with hand blocks for auxiliary processing. It is an ideal replacement for steel wool, with performance similar to #4 steel wool, but it will not rust and will not cause excessive scratches on workpiece surfaces. It is widely used in metal processing, hardware, woodworking and surface pretreatment industries, suitable for heavy cleaning, rust stripping, oxide removal, rapid cutting and decorative grain brushing under harsh working conditions.

02｜Product Advantages

*It delivers high cutting rate, which realizes efficient material removal and greatly improves processing efficiency for heavy-duty surface conditioning work.

*It adopts reinforced fiber structure, more durable and long service life, suitable for continuous heavy grinding work.

*Open mesh fiber structure prevents clogging. Worn fibers fall off automatically, new abrasive grains keep exposing to maintain stable cutting force.

*Special fiber material has excellent water and oil resistance, stable grinding performance even under oily and wet working environment.

*It can withstand high pressure operation, the whole pad is not easy to crack or break under heavy pressing.

*Cool cutting design reduces friction heat, prevents workpiece discoloration and deformation caused by high temperature.

*Low dust and low noise during operation, creating a safe and clean working environment.

03｜Product Specifications

04｜Product Feature

*It is made of nylon non-woven base material with aluminum oxide abrasive grains, with elastic grinding property.

*Elastic fiber fits various curved, irregular and complex hidden workpiece surfaces, completes finishing that traditional abrasives cannot achieve.

*It can be cut freely according to processing needs, flexible to adapt to different workpiece sizes and processing positions.

*Self-sharpening grinding performance, the cutting effect stays consistent from start to finish.

*No rust risk, perfect substitute for steel wool and wire brush.

05｜Wide Range of Applications

It is suitable for rust removal, oxide scale stripping and heavy contaminant cleaning on carbon steel, stainless steel, aluminum alloy, copper alloy and other metal workpieces, which can quickly remove thick rust, paint residue and surface dirt under harsh working conditions, and it performs aggressive brushing and surface conditioning for metal fittings, pipeline parts, casting components to form uniform brushed texture, widely used for weld cleaning, post-weld slag removal and weld seam finishing, and it can grind inner grooves, T-slots, drill bits, special-shaped slots and other complex hidden positions that ordinary abrasive tools are difficult to reach, it also applies to wood surface polishing, wood burr removal and surface pretreatment before painting, suitable for ceramic blank trimming and bronze antique finishing, besides metal and wood, it also works for plastic part deburring, composite material surface cleaning and finishing, covering hardware, auto parts and equipment maintenance scenes.