3M Sanding Belt: 4 in W x 21 3/4 in L, Aluminum Oxide, 80 Grit, X Wt Cloth Backing
The 3M 340D Sanding Belt (4 in W x 21 3/4 in L) is a general-purpose belt for wood and soft metals, featuring 80-grit aluminum oxide on an X-weight cloth backing. Supplied in a 50-pack (MPN 7100231080), it is part of…
SKU 3G-OTH-544157
Need installation or engineering help?
Ask a question
Product Description
The 3M 340D Sanding Belt (4 in W x 21 3/4 in L) is a general-purpose belt for wood and soft metals, featuring 80-grit aluminum oxide on an X-weight cloth backing. Supplied in a 50-pack (MPN 7100231080), it is part of 3M's 340D series.
Frequently Asked Questions
What is the 3M 340D sanding belt used for?
The 3M 340D sanding belt is a general-purpose abrasive belt designed for wood and soft metals. Its 80-grit aluminum oxide on an X-weight cloth backing provides consistent material removal and finishing. 3G Electric supplies this 50-pack (MPN 7100231080) for industrial workshops and maintenance operations worldwide.
What are the specifications of the 3M 340D sanding belt?
The 3M 340D sanding belt measures 4 in W x 21 3/4 in L, with 80-grit aluminum oxide abrasive on an X-weight cloth backing. It is part of the 340D series and comes in a 50-pack (MPN 7100231080). 3G Electric sources this genuine 3M product for global industrial supply.
Where to buy 3M 340D sanding belts worldwide?
3G Electric supplies the 3M 340D sanding belt (4 in x 21 3/4 in, 80 grit, 50-pack) to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this general-purpose abrasive belt for wood and soft metals.
How to select the right grit for a 3M sanding belt?
For general-purpose sanding on wood or soft metals, 80 grit (as on the 3M 340D) offers a balance of material removal and surface finish. Coarser grits (40–60) remove stock faster; finer grits (120–180) refine the surface. 3G Electric can help match the belt to your application across 14 industrial departments.
Used in
Common applications for 3M3M Products
3G Electric supplies 3M general purpose sanding belts for wood & soft metals. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.





