
Makita BO4556K
Score: 75/100
Bosch GSS20
Score: 78/100Rankings

The Bosch GSS20-40 is a compact, corded 1/4-sheet orbital finishing sander designed for precision work on intricate surfaces. Its main limitation is the single-speed operation, which restricts adaptability for different materials. It is best suited for finish carpenters and woodworkers needing precision on small areas like trim and cabinetry.

The Makita BO4556K is a lightweight 1/4 sheet finishing sander with a 2-amp motor and fixed 14,000 OPM speed, ideal for smooth finishes on flat surfaces. Its low weight and all-ball-bearing construction reduce fatigue and vibration, though the fixed speed limits its versatility for heavy material removal. It is best suited for finish carpenters and DIY users performing prep work or final smoothing.
| Attribute | ![]() | ![]() |
|---|---|---|
240 Wbest | 240 Wbest | |
14,000 RPMbest | 12,000 RPM | |
— | 1.59 mmbest | |
114.3 mmbest | 114 mm | |
| ↓ lower better | 1.13 kgbest | 1.22 kg |
1 yearsbest | 1 yearsbest | |
2 m | 2.44 mbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Power & Performance(3) | ||
No-Load Speed (RPM) | 14000 RPM | 12000 RPM |
Orbit Diameter (mm) | mm | 1.59 mm |
Sanding Pad Diameter (mm) | 114.3 mm | 114 mm |
Ergonomics & Design(4) | ||
Weight (kg) | 1.13 kg | 1.22 kg |
Switch Type | Rubber-sealed | On/Off |
Handle Type | Palm Grip | Top |
Cord Length (m) | 2.0 m | 2.44 m |
Features & Accessories(2) | ||
Dust Collection System | Through-the-Pad | Microfilter Canister |
Pad Attachment Type | Clamp | Clamp-on |



Makita positions the BO4556K as a best-in-class sander ideal for woodworkers and finish carpenters. Professional descriptions praise its 2-amp motor for delivering 14,000 OPM, its low weight of 2.5 lbs, and its reduced vibration and noise levels.
Search results lack direct user reviews or quotes, so no common praise or recurring complaints are detailed. However, it is inferred that users likely appreciate the lightweight build, comfort, and speed for everyday finishing tasks.

Professional reviewers and editors praise the Bosch GSS20-40 for its precision, pro-level build quality, and suitability for finish carpenters. It is highlighted for its ability to handle intricate surfaces, tight corners, and detailed woodworking with consistent 12,000 OPM performance. The tool's low vibration, durable aluminum plate, and effective dust management are cited as key strengths for achieving uniform results and maintaining a clean workspace.
Search results lack direct consumer reviews or detailed ratings. However, product-focused sites imply praise for smooth performance and dust control in professional settings, with no recurring complaints documented in the available data.

