
Bostitch RN46
Score: 85/100
Metabo HPT NV45AB2
Score: 88/100Rankings

The Metabo HPT NV45AB2 is a lightweight pneumatic coil roofing nailer designed for high-speed nailing with a 3 nails/sec firing rate and dry-fire lockout. It features a side-loading magazine and tool-less depth adjustment. It is best suited for professional roofers and siding installers who prioritize speed and low weight.

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.
| 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 | 3/8" |
Ergonomics & Build(3) | ||
Weight (lbs) | 4.9 lbs | 5.5 lbs |
Housing Material | Aluminum/Magnesium | |
Grip Type | Overmold | Rubber |
Controls & Adjustments(1) | ||
Actuation Mode | Contact | Sequential/Bump |
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.

Professional reviewers praise the Metabo HPT NV45AB2 for its power in driving large nails flush, versatility across roofing and siding tasks, and user-friendly mode switching with LED indicators.
Everyday users commonly praise the lightweight design for reducing fatigue during all-day use and appreciate the quick reloads via the side-load magazine.

Choose the Bostitch RN46-1 for lighter weight and faster reloading; choose the Metabo HPT NV45AB2 if sequential firing is preferred.