3M Rubber Slotted Expander Wheel 77718, 1-1/2 in x 1 in 1/4 Diameter Shank

• More consistent performance than pneumatic wheels
• Radiused edges reduce transition lines
• Soft 25-durometer rubber helps to create a fine finish
• Use 3M Wheel Adapter Kit to mount on 3M Inline Sander or 3M Match & Finish Tool
• Uses centrifugal force to grip the abrasive belt

The 3M Rubber Slotted Expander Wheel utilizes centrifugal force to grip abrasive belts while grinding. Use this wheel on a 3M Inline Sander or 3M Match & Finish Tool. It comes in three diameters and two center hole diameters.

Soft Conformable Rubber, Radiused Edges
Our 3M Rubber Slotted Expander Wheel can be mounted on a 3M Inline Sander or 3M Match & Finish Tools using a 3M Wheel Adapter Kit. We designed this wheel with soft 25-durometer rubber to keep it conformable for applications like stainless steel finishing. Radiused edges reduce transition lines as the tool makes passes across the work surface.

Centrifugal Force Is More Secure
This wheel uses centrifugal force to grip the belt rather than conventional pneumatic wheels, or tires, which rely upon the amount of air pressure they are filled with. Centrifugal force is ultimately far more efficient and consistent.

In three diameters of 3, 3.4 or 5 inches, the smaller diameter tends to obtain a tighter grade pattern and gets into tighter spaces.

Recommended Applications
Our 3M Rubber Slotted Expander Wheel is ideal for finishing stainless steel when mounted to a 3M Inline Sander or 3M Match & Finish Tool. Having mounted the expander wheel to the sander using the 3M Wheel Adapter, follow a 2-step process for finishing stainless steel, either with or without a weld:

• The coated abrasive belt 777F, 120 grit, can be used to set the grain and remove defects using the 3M Inline Sander (28339) at 3,500 rpm.
• Use our Scotch-Brite Surface Conditioning Belt, A Med, to blend the surface to a #4 finish.

3M Rubber Expander Wheel

The 3M Rubber Slotted Expander Wheel 77718 offers consistent performance with its soft 25-durometer rubber construction. This model is designed to provide a fine finish while reducing transition lines thanks to its radiused edges.

Its unique design uses centrifugal force to grip abrasive belts securely, making it more reliable than pneumatic wheels. The 1-1/2 in x 1 in 1/4 diameter shank fits perfectly for various sanding tasks.

Precise Dimensions Included

This expander wheel measures 1-1/2 inches by 1 inch with a 1/4 inch diameter shank, ensuring a precise fit for your sanding tools. These exact dimensions help maintain control and accuracy during finishing work.

Available in three diameters, this particular size is ideal for tighter spaces and detailed finishing, especially when working on stainless steel surfaces.

Soft Rubber For Finishing

The soft 25-durometer rubber material conforms well to surfaces, making it excellent for stainless steel finishing. This softness helps create a smooth, fine finish without damaging the workpiece.

Radiused edges on the wheel reduce transition lines, improving the overall appearance of the finished surface. This feature is especially useful when making multiple passes across the work area.

Compatible With Tools

This 3M expander wheel works with the 3M Inline Sander and 3M Match & Finish Tool when used with the 3M Wheel Adapter Kit. This compatibility allows for easy integration into your existing sanding setup.

Using the wheel on these tools supports a two-step finishing process for stainless steel, including setting the grain and blending to a #4 finish with Scotch-Brite belts.

Efficient Belt Gripping

The wheel uses centrifugal force to grip abrasive belts securely, which is more efficient and consistent than pneumatic wheels relying on air pressure. This ensures steady performance during sanding.

Its design supports abrasive belts like the 777F 120 grit for defect removal and Scotch-Brite Surface Conditioning belts for blending, making it versatile for various finishing tasks.