
Bostitch RN46
Score: 85/100
AeroPro CN45N
Score: 85/100Rankings

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 AeroPro CN45N is a lightweight, air-powered coil roofing nailer with a 3 nails/sec firing rate and die-cast aluminum housing. It features an ergonomic handle and 360-degree exhaust adjustment. It is best suited for professional contractors and roofing specialists requiring durable fastening tools for new installations or reroofing.
| Attribute | ![]() | ![]() |
|---|---|---|
1.75 inchesbest | 1.75 inchesbest | |
120 nailsbest | 120 nailsbest | |
— | 120 PSIbest | |
| ↓ lower better | 4.9 lbsbest | 5.5 lbs |
— | 180 nails/minbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Power & Performance(2) | ||
Firing Rate (nails/min) | nails/min | 180 nails/min |
Air Inlet Size | 1/4 in | 1/4" |
Ergonomics & Build(3) | ||
Weight (lbs) | 4.9 lbs | 5.5 lbs |
Housing Material | Aluminum/Magnesium | Aluminum |
Grip Type | Overmold | Ergonomic |
Controls & Adjustments(3) | ||
Depth Adjustment | true | |
Actuation Mode | Contact | |
Dry-Fire Lockout | true | |
Nail Compatibility & Magazine(3) | ||
Nail Gauge | 11 Gauge | 11 |
Collation Type | 15 Degree Wire | Coil |
Nail Type | 15 Degree Wire Coil | Full Head |


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.

Expert reviewers highlight the CN45N as a reliable option for professional usage due to its high performance numbers. The nailer is noted as offering great value for money, combining practical features with professional-grade functionality.
While detailed consumer reviews are not provided in the search results, the tool's design features suggest user satisfaction. The ergonomic handle, lightweight construction (5.5 lbs), and comfortable grip are standard expectations for professional-grade tools that users would appreciate during extended use.