Bauer 20V 5 Inch Sander (Tool Only) | Cordless Random Orbital Sander
Our Bauer 20V 5 inch sander tool only brings professional-grade surface prep to your workshop without the cord. This random orbital sander combines 12,000 OPM max speed with a smooth 3/32-inch orbit diameter to eliminate swirl marks on wood, metal, and composite materials. The compact design weighs just 3.2 lbs without battery, reducing operator fatigue during extended sanding sessions.
We engineered this cordless sander with a variable speed dial and dust-sealed switch to protect internal components from fine particles. The pad brake stops rotation within two seconds of releasing the trigger for precise control. Tool-free hook-and-loop pad changes let you swap between grits in seconds, while the ergonomic overmold grip keeps your hand comfortable through hours of finishing work.
- 20V lithium-ion battery platform (battery and charger sold separately)
- Variable speed control: 7,000-12,000 orbits per minute
- 5-inch hook-and-loop sanding pad with 3/32-inch orbit diameter
- Dust-sealed on/off switch protects against abrasive particles
- Pad brake stops rotation in under 2 seconds for safe pad changes
Variable Speed Performance for Every Material
The Bauer 20V 5 inch sander tool only features a six-position variable speed dial that lets you match orbital speed to your material and grit selection. Lower speeds (7,000-9,000 OPM) work best with coarse grits on softwoods and painted surfaces where you need aggressive material removal without burning through finish layers. Mid-range speeds (9,000-10,500 OPM) suit general-purpose sanding on hardwoods and furniture projects.
Maximum Speed for Final Finishes
We calibrated the top speed of 12,000 OPM specifically for fine-grit finishing work on hardwoods, automotive primers, and composite panels. The shorter 3/32-inch orbit at high speed creates an ultra-smooth surface that requires minimal hand-sanding before stain or clear coat application. Our motor maintains consistent speed under load, preventing the bog-down that creates uneven scratch patterns with cheaper sanders.
Battery Compatibility & Runtime
This sander operates on any Bauer 20V lithium-ion battery from our cordless tool system. We designed the motor to draw 1.8 amps under typical sanding loads, which translates to approximately 35-45 minutes of continuous runtime with a 3.0 Ah battery pack at medium speed settings. Heavier material removal at maximum speed reduces runtime to 25-30 minutes per charge.
For all-day production work, we recommend pairing this tool with our 4.0 Ah or 6.0 Ah high-capacity battery packs. The same battery charges all tools in the Bauer 20V lineup, including our angle grinders and polishers for complete workshop flexibility. Battery fuel gauge LEDs show remaining charge at a glance.
Dust Collection & Work Environment
We integrated a 1-1/4 inch dust extraction port directly into the sander body to connect with shop vacuums or dedicated dust collectors. The sealed bearing design and dust-protected switch housing prevent fine particles from infiltrating the motor compartment, extending tool life in high-dust finishing environments. Our hook-and-loop backing pad features strategically placed dust extraction holes that pull debris away from the workpiece during operation.
Dust Collection Adapter Options
The dust port accepts standard vacuum hoses with friction fit. For secure connections during production work, we offer an optional locking adapter that threads onto the port and accepts standard 1-1/4 inch to 2-1/2 inch vacuum accessories. The smooth pad surface remains flush when sanding without dust collection for jobsite work where vacuum connection isn’t practical.
Complete Your 20V Cordless Power Tool Collection
What people are saying
Bauer 20V 5 Inch Sander Questions
No, this is a tool-only purchase that includes the sander body, backing pad, and pad wrench. Battery packs and chargers are sold separately, allowing you to build your 20V cordless tool collection without purchasing duplicate charging equipment.
Any Bauer 20V lithium-ion battery works with this sander. We recommend starting with at least one 3.0 Ah battery pack and rapid charger for typical workshop projects.
This sander uses standard 5-inch hook-and-loop sanding discs with either eight-hole or universal multi-hole dust extraction patterns. The hook-and-loop backing pad grips any brand of quality sanding disc designed for 5-inch random orbital sanders.
Avoid cheap discs with weak hook backing material, as they may spin loose at maximum speed. Our backing pad measures exactly 5 inches in diameter with properly spaced dust extraction holes for optimal debris removal during operation.
Runtime varies based on battery capacity and speed setting. With a 3.0 Ah battery at medium speed (9,000-10,000 OPM), expect 35-45 minutes of continuous sanding. Maximum speed operation reduces runtime to approximately 25-30 minutes as the motor draws more current.
Our 4.0 Ah and 6.0 Ah high-capacity batteries extend those times proportionally—a 4.0 Ah pack typically provides 45-60 minutes at medium speed. For all-day production work, we recommend keeping two batteries in rotation so one charges while you work with the other.
Yes, the integrated 1-1/4 inch dust port accepts standard shop vacuum hoses with friction fit. Most shop vacuums include reducer fittings that adapt larger hoses down to 1-1/4 inches for power tool connection.
For more secure attachment during production work, we offer an optional locking adapter that threads onto the dust port and accepts various hose diameters. The dust extraction works best with fine-grit sanding (120-grit and higher) where particles are small enough to flow through the pad holes and port efficiently.
This random orbital sander uses circular motion with a small 3/32-inch orbit diameter that eliminates visible scratch patterns and swirl marks. The random orbit action cuts faster than sheet sanders while leaving a smoother finish that requires minimal hand-sanding before stain or topcoat application.
Sheet sanders (also called palm sanders) move in pure back-and-forth or orbital patterns that can leave directional scratches, especially with coarser grits. Random orbital sanders like this Bauer model work better for furniture, cabinetry, and any project where final finish quality matters more than aggressive material removal.
This sander excels at surface preparation and finish smoothing rather than heavy paint stripping. For removing thick paint layers, we recommend starting with a chemical stripper or heat gun, then using this sander with 60 or 80-grit discs to level the stripped surface.
The 12,000 OPM maximum speed and 3.2 amp motor provide adequate power for general woodworking, furniture refinishing, and light material removal. For aggressive stock removal on large surfaces, consider pairing this finishing sander with our belt sander for initial leveling work.
The backing pad attaches to the motor shaft with a single recessed bolt accessible through the pad center. We include a pad wrench with your tool-only purchase that fits this bolt. Remove the worn pad by holding the spindle lock button and turning the wrench counterclockwise.
Replacement pads thread onto the shaft clockwise until hand-tight—do not overtighten as this can strip the aluminum threads. Genuine Bauer replacement pads maintain proper balance and hook strength for secure disc attachment throughout the pad’s service life.