NT Cutter Heavy-Duty Aluminum Die-Cast Anti-Slip Contoured Grip Screw-Lock Utility Knife (L-550GP)

Q: What's the secret to removing the old blade and inserting a new one? Does it slide in and out from the back end?

I've never had to remove the old blade and replace it. I just use pliers to snap off the dulled little piece which reveals a new, sharp edge. Once the whole blade is used up, I usually just toss it. I don't know if it's replaceable or not.

Q: What do you do when it jams after you replaced the blade? This didn’t happen the first time I replaced the blade

Just take it apart and clean it with soap and water and a small brush (like a toothbrush). This is a precision made tool, and by and far the best in it's class I might add. The specs are tight, so if a little debris (such as dirt or pocket lint), gets into the sliding track grooves, it can block the blade from extending. Remember to air dry the parts separately before re-assembling. With proper cleaning and care, this high quality, heavy duty tool will dutifully serve you for a lifetime. I keep this very model on me at all times (L-500GRP).

Product ID: 254862993

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Details

Material
Stainless
Brand
NT Cutter
Colour
Stainless
Item length
1.8
Blade material
Aluminum

🔒Secure screw-lock blade system

🔪18mm heavy-duty snap-off blade

🛠️Aluminum die-cast anti-slip contoured grip

Frequently Bought Together

NT Cutter Heavy-Duty Aluminum Die-Cast Anti-Slip Contoured Grip Screw-Lock Utility Knife (L-550GP)

Ergodyne ProFlex 1650 Back Support Belt, 7.5" Elastic, Adjustable, Removeable Straps, Large

Description

🔪 Cut like a pro, grip like a boss.

SAFETY FIRST DESIGN - Innovative screw-lock system keeps the blade firmly in place, minimizing accidents and maximizing cutting efficiency.
ERGONOMIC GRIP MASTERY - Aluminum die-cast contoured handle with anti-slip coating ensures maximum comfort and control—even with gloves on.
PRECISION CUTTING POWER - 18mm carbon steel blade engineered for ultimate sharpness and edge retention, perfect for professional-grade projects.
ECO CONSCIOUS CRAFTSMANSHIP - Constructed from 100% post-consumer recycled materials with a water-resistant electrical-acrylic metal coating—cut responsibly.
VERSATILE INDUSTRIAL UTILITY - Ideal for cutting cardboard, rubber, leather, linoleum, carpet, and more—trusted by pros in construction, warehousing, and DIY.

The NT Cutter L-550GP is a premium Japanese-made utility knife featuring an 18mm heavy-duty carbon steel snap-off blade, an ergonomic aluminum die-cast anti-slip grip crafted from recycled materials, and a secure screw-lock system. Designed for professionals demanding precision, safety, and durability across diverse cutting tasks.

Specifications

Manufacturer	NT Incorporated
Brand	NT Cutter
Model number	L-550GP
Product Dimensions	15.49 x 4.57 x 2.29 cm; 108.86 g
Color	Stainless Steel
Material Type	Stainless Steel
Number of Items	1
Size	18mm Heavy-Duty
Manufacturer Part Number	L-550GP
Item Weight	109 g

Have a Question? See What Others Asked

What's the secret to removing the old blade and inserting a new one? Does it slide in and out from the back end?

Where can I get replacement blades??

What do you do when it jams after you replaced the blade? This didn’t happen the first time I replaced the blade

Does it have a belt clip?

Reviews

A**.

Estilete

Excelente ferramenta. Muitoa afinado e boa pegada.

8.05.2024

J**J

Rugged and reliable

These utility knives are really outstanding. They are superior in durability, sharpness, grip and value. This is my second order. My first knife is several years’ old, and after heavy use and abuse, it’s still going strong.

25.01.2024

S**O

Material predominante alumínio

Estilete muito bem confeccionado (alumínio) , robusto e com um bom corte. A lamina fica bem travada para o corte.

12.07.2023

I**E

Exellent autolocking utility knife

I really like this utility knife as it is lightweight, made of stainless steels, though painted with a nice vintage look, and the blade locks to the location I'm using it without using a wheel.

5.12.2022

J**Z

Excelente

Como siempre se nota la calidad Japonesa, es un artículo precioso

5.03.2022

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