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3M 340D 60 Grit 4 x 24 Portable Sanding Belt is a general purpose portable sanding belt built on an X-weight cloth backing, so it stands up to everyday abrasive belt use on jobsite or shop belt sanders. The aluminum oxide abrasive is engineered to provide a good cut, which helps you remove stock efficiently during leveling or shaping passes. This 340D version is an open coat belt, so the spacing between abrasive grains is designed to give a good cut with less loading in dusty sanding conditions. The 4 x 24 size matches many portable belt sanders, letting you put the belt straight into typical industrial and woodworking workflows. As part of the 3M 340D and 341D family, this belt sits in a well-established abrasive line for industrial and occupational users.
The 4 x 24 dimension is specified for this 3M 340D sanding belt, so it is sized for portable belt sanding where a longer belt supports extended contact on the work surface. The general purpose description aligns this belt with routine sanding, where a single abrasive type needs to bridge between different wood or similar materials. The X-weight cloth backing is designed for portable belt use, providing enough stiffness to stay stable under belt tension while still flexing around typical contact wheels and platens. The open coat design supports longer sanding passes by reducing loading, so you can carry a cut farther across panels or parts before changing belts.
This 3M 340D sanding belt is listed in 4 x 24 size, so it is suited to portable belt sanders that are built around that belt length and width. In use, the X-weight cloth backing helps the belt track consistently over the platen and rollers, supporting smoother sanding passes across edges, frames, or broader surfaces. The aluminum oxide abrasive on this portable sanding belt delivers a good cut, so each pass removes material effectively when performing general purpose sanding. Because 340D is identified as part of the 3M general purpose portable sanding belt line, it is intended to slot into regular belt sanding tasks rather than niche, highly specialized work. The 60 grit rating positions this belt at the coarse end of the 340D available range, which spans from 50 to 120 grit, so it is oriented toward initial leveling or shaping before finer grits are used.
The 340D designation marks this belt as an open coat abrasive, and that structure is described as providing a good cut with less loading, so abrasive grains stay more available as dust moves through the spaces between them. In a portable sanding workflow, that less loading behavior helps maintain a more predictable cut rate from the start of the belt life through longer passes, reducing interruptions from belt glazing. The 60 grit grade sits near the coarse range of the general purpose 340D offering, so the cut profile is aggressive enough for stock removal while still supporting a general purpose role instead of ultra-rough grinding. Being part of an excellent all-around abrasive belt line for everyday use, this specific belt gives installers and shop users a consistent option when they want one abrasive that ties to a larger 3M 340D and 341D system across multiple belt sizes and grit steps.
The 3M 340D sanding belt uses aluminum oxide abrasive on an X-weight cloth backing, which supports a good cut with a strong, flexible belt foundation.
The open coat 340D design is described as providing a good cut with less loading, so abrasive grains stay more effective when sanding in dust-generating applications.
The X-weight cloth backing supports the aluminum oxide abrasive with strength and flexibility, which helps the belt stay stable and track well on portable belt sanders.
The 340D line is available from 50 to 120 grit, so 60 grit sits near the coarse end and is suited to more aggressive general purpose stock removal.
This belt is described as an excellent all-around abrasive belt for everyday use, so it aligns with routine portable belt sanding tasks in industrial settings.
This 3M product is stated as for industrial and occupational use only, so it is intended and labeled for trained workplace users rather than consumer use.
This 3M 340D 60 grit 4 x 24 aluminum oxide sanding belt combines an open coat design, X-weight cloth backing, and general purpose portable sanding role, so it aligns with everyday industrial belt sanding where a good cut with less loading is valuable.
Sold In: 10 Belt
