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.

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).

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

Product ID: 254862993

Details

Brand
NT Cutter
Colour
grey
Handle material
Aluminum
Item length
1.8
Material
Stainless

🔩Screw-lock system for secure blade hold

♻️100% recycled aluminum die-cast grip

🛠️18mm heavy-duty snap-off carbon steel blade

¥5833

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Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔪 Cut with confidence, grip with purpose — the ultimate utility knife for pros who demand more.

LOCK IT DOWN - Reliable screw-lock system ensures blade stays firmly in place for maximum safety and cutting efficiency.
PRECISION MEETS POWER - Heavy-duty 18mm carbon steel blade engineered for ultimate sharpness and edge retention.
BUILT FOR PROFESSIONALS - Smooth stainless steel blade sliding track with built-in blade snapper, designed for industrial and DIY excellence.
GRIP THAT WORKS OVERTIME - Ergonomic aluminum die-cast contoured handle with anti-slip coating, perfect for gloved or sweaty hands.
ECO CONSCIOUS CRAFTSMANSHIP - Made from 100% post-consumer recycled materials with water-resistant electrical-acrylic metal coating.

The NT Cutter L-550GP is a premium heavy-duty utility knife featuring an 18mm carbon steel snap-off blade, housed in a durable aluminum die-cast contoured grip made from recycled materials. Its screw-lock system secures the blade firmly, while the stainless steel sliding track ensures smooth blade operation. Designed in Japan for professional-grade cutting across diverse materials, this knife combines eco-conscious design with industrial strength and precision.

Specifications

ASIN	B009F6C9F4
Best Sellers Rank	#59,142 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #195 in Utility Knives
Blade Material	ALUMINUM
Brand Name	NT Cutter
Color	grey
Country of Publication	Japan
Customer Reviews	4.6 4.6 out of 5 stars (110)
Global Trade Identification Number	00030203900357
Handle Material	Aluminum
Handle Type	Manual-Retractable
Item Length	1.8 Centimeters
Item Weight	109 g
Manufacturer	NT Incorporated
Manufacturer Part Number	L-550GP
Material Type	Stainless Steel
Model Number	L-550GP
Number of Packs	1
Product Style	Aluminum Die-Cast Anti-Slip Contoured Grip with Screw-Lock
UPC	030203900357
Unit Count	1 Count

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The product quality is outstanding. Exactly what I needed for my work.

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¥5833

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

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The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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