
MAX SuperRoofer CN445R3
Score: 90/100
Metabo HPT NV45AB2
Score: 88/100Rankings

The MAX USA CORP SuperRoofer CN445R3 is a lightweight pneumatic 15° coil roofing nailer designed for driving wire-collated nails up to 1-3/4" with a full round head driver. It features rapid-fire actuation, tool-free depth adjustment, and an 8x more tar-resistant nose compared to conventional tools, making it ideal for high-volume professional roofing and siding applications. The tool is frequently cited as a direct upgrade to the CN445R2, with added benefits like the swivel fitting for better hose management.

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.
| Attribute | ![]() | ![]() |
|---|---|---|
1.75 inchesbest | 1.75 inchesbest | |
120 nailsbest | 120 nailsbest | |
120 PSIbest | 120 PSIbest | |
| ↓ lower better | 5.6 lbs | 5.5 lbsbest |
180 nails/minbest | 180 nails/minbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Power & Performance(1) | ||
Air Inlet Size | 1/4 | 3/8" |
Ergonomics & Build(4) | ||
Weight (lbs) | 5.6 lbs | 5.5 lbs |
Housing Material | Aluminum | |
Exhaust Adjustment | true | |
Grip Type | Standard | Rubber |
Controls & Adjustments(4) | ||
Actuation Mode | Contact | Sequential/Bump |
Jam Clearing Mechanism | false | true |
Safety Lockout | true | |
Dry-Fire Lockout | false | true |
Nail Compatibility & Magazine(2) | ||
Nail Gauge | 0.120 | 11 |
Nail Type | Coil | Full Head |

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

Professional reviewers and editors consistently praise the CN445R3 as a top-tier roofing nailer, highlighting its lightweight design that outperforms heavier cordless rivals. Experts emphasize its extreme driving power, consistent accuracy, and superior tar resistance, which blocks buildup significantly longer than competitors.
Everyday users and professionals infer high satisfaction based on product demos and pages, noting reliability for daily roofing and siding work. Common praise centers on ease of cleaning and efficient rapid-fire performance.




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.