
Bostitch RN46
Score: 85/100
Bhtop CN45N
Score: 78/100Rankings

The Bostitch RN46-1 is a lightweight pneumatic coil roofing nailer designed for high-volume professional tasks, featuring a patented side-load canister for fast reloading. It delivers exceptional power-to-weight ratio and includes a dry-fire lockout to prevent damage. However, it requires perfect perpendicular alignment to avoid angled nail sets and may cause accidental discharges in tight spaces.

The BHTOP CN45N is a pneumatic 15-degree roofing nailer with a high-capacity magazine and durable aluminum alloy body designed for professional use. It features an extremely low jam rate and heat-treated drive pins, though it lacks verified performance data and operating pressure specifications. Best for professional roofers performing large-scale projects requiring rapid shingle installation.
| Attribute | ![]() | ![]() |
|---|---|---|
1.75 inchesbest | 1.75 inchesbest | |
120 nailsbest | 120 nailsbest | |
| ↓ lower better | 4.9 lbsbest | 7.06 lbs |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Power & Performance(1) | ||
Air Inlet Size | 1/4 in | 1/4" |
Ergonomics & Build(3) | ||
Weight (lbs) | 4.9 lbs | 7.06 lbs |
Housing Material | Aluminum/Magnesium | Aluminum |
Grip Type | Overmold | TPE |
Controls & Adjustments(1) | ||
Actuation Mode | Contact | Sequential/Contact |
Nail Compatibility & Magazine(3) | ||
Nail Gauge | 11 Gauge | 15 |
Collation Type | 15 Degree Wire | Wire |
Nail Type | 15 Degree Wire Coil | 15 Degree |


Products in the top-left offer the best value (high score, low price).

Professional reviewers, including Fine Homebuilding, praise the Bostitch RN46-1 for its exceptional power-to-weight ratio and low recoil. Experts highlight its ability to drive nails flush through thick materials and appreciate job-site features like the zero lockout and precise shingle guide.
Everyday users and contractors generally praise the tool for being lightweight, durable, and fast-reloading. Common themes include time savings from the lockout feature and consistent performance on shingles and insulation.

Professional reviewers and editors have not provided direct feedback for the BHTOP CN45N. However, similar models in its category are characterized as lightweight and durable tools capable of withstanding extreme roofing environments, featuring industrial-grade components like German heat-treated pins designed to minimize jam rates during heavy-duty operations.
There is no available consumer feedback or user testimonials for the BHTOP CN45N. Retail listings highlight its high magazine capacity and broad nail compatibility but lack detailed user experiences regarding long-term reliability or ease of use.
