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Description
The 3M 7100106789 inline sander is a purpose-built 1 HP pneumatic finishing tool engineered to produce repeatable straight-line metal finishes on stainless steel and other ferrous and non-ferrous substrates. As a production-grade 3M inline sander, it combines a fully machined steel motor housing, heavy-duty gearbox, and wrench flats for serviceability with an overhose interface for accessory compatibility. The tool’s 5/8-11 external thread and 12.5" overall length accept Scotch-Brite and Trizact flap belts and brushes to generate directional finishes, blend welds, and prepare surfaces for final polishing. While shops sometimes specify a straight-line electric sander for certain applications, this pneumatic inline sander delivers higher torque, easier duty-cycle management, and low maintenance for continuous finishing operations where consistent finish geometry and measurable performance matter.
Product Features and Benefits
Straight-line finishing performance
The 3M inline sander produces controlled directional finishes suitable for satin, brushed, and blended weld appearances; it is intended to restore or create straight-line patterns to specifications.
1 HP pneumatic motor with 3500 rpm maximum
High-torque pneumatic drive handles demanding finishing loads while maintaining constant speed under cut for repeatable results across cycles.
Fully machined steel motor housing
The electric inline sander's tough housing increases durability in harsh shop environments and ensures accurate alignment for long tool life and minimal run-out.
Heavy-duty gearbox and low maintenance
The industrial gearbox design shortens lubrication intervals and reduces downtime, allowing the tool to remain productive during continuous finishing and blending.
5/8-11 external thread and 12.5" OAL for tooling compatibility
The straight-line electric sander's standard threading and overall length allow it to accept a variety of Scotch-Brite and Trizact flap brushes, belts, and accessories for versatile finishing workflows.
Service-friendly features for production use
Wrench flats and an overhose interface make maintenance and accessory changes easier, saving time and increasing line uptime.
Product Specifications
| Manufacturer Part Number | 7100106789 |
| Legacy SKU | 60440243206 |
| Overall Height (Imperial) | 4.63" |
| Overall Height (cm) | 11.75cm |
| Overall Length (Inch) | 12.5" |
| Overall Length (cm) | 31.75cm |
| Overall Width (Inch) | 7.44" |
| Overall Width (cm) | 18.9cm |
| Air Inlet Thread | 1/4" NPT |
| Airflow Rate | 37.0 scfm |
| Maximum Speed | 3500.0 rpm |
| Motor HP (W) | 1 (744) |
| Application | Finishing, Deburring, Grinding |
| Power Source | Pneumatic |
| Product Type | Inline Sander |
| Thread Size | 5/8-11 EXT |
Frequently Asked Questions
Is the 3M inline sander electric or pneumatic?
The 3M 7100106789 is a pneumatic inline sander designed for compressed-air supply and industrial finishing duty.
Can this tool be used as an electric inline sander alternative?
Yes—it is commonly chosen over electric inline sanders where higher torque and continuous production use are required.
What tooling accepts the 5/8-11 thread on this inline sander?
The 5/8-11 EXT thread accommodates Scotch-Brite and Trizact belts, flap brushes, and many standard finishing accessories.
Is this inline sander suitable for precision straight-line metal finishing?
Yes—the tool is optimized to generate and restore straight-line finishes with consistent geometry for stainless steel and other metals.
Warning:
This product can expose you to materials and/or chemicals including arsenic, lead, and other materials and/or chemicals which are known to the state of California to cause cancer and/or reproductive harm.
For more information, visit www.P65Warnings.ca.gov
