Chicago Pneumatic CP872
Score: 82/100
Bosch GWG12V-20SN
Score: 85/100Rankings
The Bosch GWG12V-20SN is a bare tool cordless 12V Max brushless right-angle die grinder designed for precision grinding in tight spaces. It features an ultra-compact ergonomic design weighing 1.2 lbs, variable speed control up to 15,000 RPM, and an LED interface for status monitoring. This tool is engineered to provide the power and speed of air tools with the portability and comfort of a cordless system.
The Chicago Pneumatic CP872 is a high-performance straight pneumatic die grinder featuring a powerful 0.63 HP motor and low vibration levels. Its high air consumption and noise output are significant trade-offs that require robust infrastructure and safety gear. It is ideal for maintenance professionals and welders needing a lightweight, high-speed tool for general polishing and deburring.
| Attribute | | |
|---|---|---|
27,000 RPMbest | 15,000 RPM | |
| ↓ lower better | 26 CFMbest | — |
| ↓ lower better | 100.9 dBbest | — |
| ↓ lower better | 2.5 m/s²best | — |
| ↓ lower better | 0.57 kg | 0.54 kgbest |
240 mmbest | 190.5 mm | |
0.63 Wbest | — | |
110 mm | 114.3 mmbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
General(1) | ||
Warranty | 1 year | N/A |
Compatibility & Controls(3) | ||
Collet Size | 1/4 inch | 1/4" |
Switch Type | Lock-off Lever | Variable Trigger |
Tool Type | Straight | Right Angle |
Performance(1) | ||
No-Load Speed (RPM) | 27000 RPM | 15000 RPM |
Dimensions(3) | ||
Overall Length (mm) | 240 mm | 190.5 mm |
Overall Width (mm) | 110 mm | 114.3 mm |
Overall Height (mm) | 100 mm | 50.8 mm |
Power & Air(1) | ||
Power Source | Pneumatic | Cordless |
Ergonomics & Build(2) | ||
Weight (kg) | 0.57 kg | 0.54 kg |
Handle Type | Lever | Right Angle |
Products in the top-left offer the best value (high score, low price).
Professional sources emphasize the tool's reliability and safety features for maintenance tasks, highlighting its economic value and upgraded ergonomic design.
There is no available consumer feedback, ratings, or testimonials in the provided data. Retail sites list the product but do not provide user comments or aggregated scores, making it impossible to derive common themes or sentiment from everyday users.
“powerful ultra-compact... ideal for pros needing precision without bulk; ergonomic grip minimizes fatigue; versatile for polishing to aggressive removal; brushless enhances efficiency”
“one of my favorite tools now cordless... perfect for carpenter or automotive tech; feels comparable to air tools for speed and material removal”
Professional reviewers and editors highlight the Bosch GWG12V-20SN as a powerful, ultra-compact tool ideal for pros needing precision without bulk. It is praised for its ergonomic grip that minimizes fatigue and its brushless motor that enhances efficiency. Reviewers note that it feels comparable to air tools in terms of speed and material removal, making it a favorite for carpenters and automotive technicians who require cordless versatility.
Everyday users and video reviewers praise the tool's speed and feel, noting it matches corded tools effectively. It is considered suitable for both carpenters and automotive work, with no recurring complaints noted in the limited feedback available. Users appreciate the portability and precision, though specific long-term reliability feedback is scarce due to a lack of aggregated reviews.
