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OLFA 25mm Extra Heavy-Duty Utility Knife (NH-1) - Multi-Purpose Custom Cutting Depth Precision Knife w/Ergonomic Grip Handle & Snap-Off Blade, Replacement Blades: Any OLFA 25mm Blade

4.7 out of 5 stars 115 ratings
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Purchase options and add-ons

Material Plastic
Brand Olfa
Colour Stainless Steel
Item length 25 Millimeters
Handle material Rubber
Blade material Stainless Steel
Blade length 25 Millimeters
Style Fine
Handle type Manual-Retractable
Manufacturer OLFA

About this item

  • RAZOR SHARP 25mm BLADE - Our knife is preloaded with an HB Extra Heavy Duty Stainless Steel Snap-Off Blade made from Japanese tool grade steel for unparalleled sharpness and superior edge retention. The 25mm blade has 7 razor-sharp snap-off segments. The extra heavy-duty blade is great for industrial or construction applications.
  • NON SLIP CORROSION RESISTANT HANDLE - This precision knife has a compact handle that is precise and strong enough for detailed cuts through thick materials. Its durable body resists corrosion and has a non-slip grip and comfortable fit in your hand.
  • CUSTOM RATCHET LOCK CONTROL - Designed with safety in mind, our box cutter's ratchet-based locking system provides custom cutting depths. The blade slider has a wheel locking mechanism for unlimited positions when securing the blade in place.
  • MULTIPURPOSE EXTRA HEAVY DUTY DESIGN - The OLFA 25mm NH-1 Retractable Utility Knife is perfect for cutting through the toughest materials. It delivers precision cuts through nylon, rope, laminates, leather, rubber, gasket materials, and more.
  • THE OLFA STANDARD - As the original inventor of the Snap-Off Knife, OLFA has maintained a standard of cutting excellence for our quality and durability. Pairing your OLFA 25mm Utility Knife with OLFA 25mm Blades will provide optimal results.

Frequently bought together

OLFA 25mm Extra Heavy-Duty Utility Knife (NH-1) - Multi-Purpose Custom Cutting Depth Precision Knife w/Ergonomic Grip Handle
This item: OLFA 25mm Extra Heavy-Duty Utility Knife (NH-1) - Multi-Purpose Custom Cutting Depth Precision Knife w/Ergonomic Grip Handle & Snap-Off Blade, Replacement Blades: Any OLFA 25mm Blade
$22.99
Get it by Wednesday, Jul 16
In Stock
Sold by Construction Fasteners and Tools Ltd. and ships from 鶹 Fulfillment.
+
OLFA 25mm Extra Heavy-Duty Ultra-Sharp Black Snap Off Replacement Blades, 5 Blades (35 Segments) HBB-5B - Snap-Off Utility Kn
$14.90
Get it by Saturday, Jul 19
In Stock
Sold by Executive Class Ecommerce Inc. and ships from 鶹 Fulfillment.
Total price:$00
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Product Description

OLFA nh-1 Utility knife

OLFA 25mm Extra Heavy-Duty Utility Knife NH-1

  • RAZOR SHARP 25mm BLADE - Our knife is preloaded with an HB Extra Heavy Duty Stainless Steel Snap-Off Blade made from Japanese tool grade steel for unparalleled sharpness and superior edge retention. The 25mm blade has 7 razor-sharp snap-off segments. The extra heavy-duty blade is great for industrial or construction applications.
  • NON SLIP CORROSION RESISTANT HANDLE - This precision knife has a compact handle that is precise and strong enough for detailed cuts through thick materials. Its durable body resists corrosion and has a non-slip grip and comfortable fit in your hand.
  • CUSTOM RATCHET LOCK CONTROL - Designed with safety in mind, our box cutter's ratchet-based locking system provides custom cutting depths. The blade slider has a wheel locking mechanism for unlimited positions when securing the blade in place.

RAZOR SHARP 25mm Utility Knife

OLFA nh-1

Multipurpose Heavy Duty Design

The heavy duty design of the OLFA NH-1 makes it perfect for tough cutting industrial and construction projects, delivering accurate cuts through nylon, rope, laminates, leather, rubber and more.

OLFA nh-1 utility knife

Ratchet Lock Control

The razor sharp heavy duty utility knife was designed with safety in mind. The ratchet locking system allows you to lock in your blade at a customizable depth for safe and secure cuts.

Snap off blade

Easy Snap Off Blades

OLFA's 25mm stainless steel snap off blades allows for quick and easy blade replacement. Each blade comes with 7 snap off segments. Simply snap off the segment for a new razor sharp edge.

OLFA nh-1 Knife

Non-Slip Handle

The OLFA NH-1 Extra Heavy Duty Knife was built for safe use and all day comfort. The rubber handle is chemical and acetone resistant providing for easy clean up.

H-1
NH-1
XH-1
XH-AL
EH-1
Buying Options
Buying Options
Buying Options
Customer Reviews
4.7 out of 5 stars 1,043
4.7 out of 5 stars 115
4.6 out of 5 stars 716
4.7 out of 5 stars 319
4.7 out of 5 stars 121
25 mm Snap Off Blades ✓ ✓ ✓ ✓ ✓
Non-Slip Grip Handle ✓ ✓ ✓ ✓ no data
Customizable Ratchet Lock ✓ ✓ ✓ no data ✓
Auto-Lock Mechanism no data no data no data ✓ no data

Other Products Offered By OLFA

SCS-S

OLFA Multi-Purpose Scraper

OLFA offers a 1" multipurpose stainless-steel scraper perfect for scraping, preparation and clean up jobs. The narrow design make it ideal for tight spaces and works great on wood, glass, metal and more. Made with acetone-resistant materials, cleanup is never an issue.

OLFA Small Rotary Cutter 18mm

OLFA Rotary Cutter 18mm

The 18mm Rotary Cutter is pre-loaded with an RB18 Rotary Blade made from high-quality stainless steel. Provides detailed and precise cutting of fabric, paper, and film.

AK1/5B

OLFA Standard Art Knife

Standard duty art knife perfect for paper, vinyl, rubber, models, cardstock, foam, and more. Pen-like hobby knife has a textured, contoured handle that delivers comfort and stability

RM-SG

OLFA Self-Healing Rotary Mat

OLFA offers a 18"x24" self-healing cutting mat perfect for small and medium size projects. Our rotary mat has a self-healing finish that reseals surface cuts for a continually smooth cutting surface. Pairing your OLFA Rotary Cutting Mat with OLFA Rotary Cutters will provide optimal results.

Professional and Craft Retail Product Lines

OLFA Professional and Craft Retail Banner

OLFA offers a wide variety of tools including Snap-off cutter, Rotary knives, Safety knives, Utility cutters, Art knives, Scissors, Compass cutters, Scrapers, Blade disposal cases, Rulers, Cutting mats and Blades. Creating with the right tools is pure pleasure. They allow to obtain a precise cut, affect the quality of our work and the final effect of the work.

Product information

Technical Details

Manufacturer ‎OLFA
Place of Business ‎EDGEWOOD, KY, 41017 US
Part Number ‎9043US
Product Dimensions ‎9.14 x 3.05 x 22.23 cm; 68 g
Item model number ‎9043US
Colour ‎Stainless Steel
Style ‎Fine
Material ‎Plastic
Pattern ‎Modern
Item Package Quantity ‎1
Number of Handles ‎1
Handle Material ‎Rubber
Blade Length ‎25 Millimeters
Special Features ‎Locking Blades
Batteries Included? ‎No
Batteries Required? ‎No
Item Weight ‎68 g

Additional Information

ASIN B0006SJAW0
Customer Reviews
4.7 out of 5 stars 115 ratings

4.7 out of 5 stars
鶹 Rank
Date First Available Aug. 11 2012

Feedback

OLFA 25mm Extra Heavy-Duty Utility Knife (NH-1) - Multi-Purpose Custom Cutting Depth Precision Knife w/Ergonomic Grip Handle & Snap-Off Blade, Replacement Blades: Any OLFA 25mm Blade

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Price$22.99-15%$14.90
Was: $17.45		$16.49-5%$21.91
Was: $23.00
Delivery
Get it by Wednesday, Jul 16
Get it by Saturday, Jul 19
Get it by Saturday, Jul 19
Get it by Friday, Jul 18
Customer ratings
4.74.7 out of 5 stars115
4.74.7 out of 5 stars334
4.64.6 out of 5 stars217
4.84.8 out of 5 stars511
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Customer reviews

4.7 out of 5 stars
115 global ratings

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Top reviews from Canada

  • Mathieu
    5.0 out of 5 stars Perfect Knife for Carpenters
    Reviewed in Canada on April 23, 2025
    Verified Purchase
    Work as it should. Olfa knifes are the best.
    Helpful
     Report
  • 鶹 Customer
    5.0 out of 5 stars Best utility knife I've used
    Reviewed in Canada on March 4, 2023
    Verified Purchase
    This is my second purchase of this knife in the last 4 years, but the first is still going strong despite getting beaten up constantly. Hands down the best OLFA, but not sold in Home Depot. Solid build and large body makes for a good firm grip. When the silicone handle breaks in a tiny bit it really is a super comfortable knife that allows you to control your blade well. The rubber is way more durable than I first expected when buying it. The slide wheel still opens and closes with a thumb and blades are easy to change as with other OLFAs. Fantastic jobsite knife.
    2 people found this helpful
    Helpful
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  • Jacques Roy
    5.0 out of 5 stars couteau
    Reviewed in Canada on September 21, 2024
    Verified Purchase
    très bon
    Helpful
     Report
  • Two thumbs up for my papa bear shorts, thanks
    5.0 out of 5 stars Best olfa ever
    Reviewed in Canada on May 19, 2024
    Verified Purchase
    Love it
    Helpful
     Report
  • PoisonBb
    5.0 out of 5 stars Olaf the best
    Reviewed in Canada on December 28, 2023
    Verified Purchase
    Good grip and easy to use. Be careful as easy to cut yourself. Cut away from your body.
    Helpful
     Report
  • Rafael Furuya
    5.0 out of 5 stars Great quality
    Reviewed in Canada on February 24, 2021
    Verified Purchase
    Great quality
    Helpful
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Top reviews from other countries

  • Taylor
    5.0 out of 5 stars Very sharp and sturdy box cutter.
    Reviewed in the United States on August 19, 2024
    Verified Purchase
    This box cutter cuts safely and nicely even the thickest of boxes. Just be very careful as it is very sharp!
    Report
  • G. Heilman
    5.0 out of 5 stars Best Snap Off Blade Knife By Far
    Reviewed in the United States on January 9, 2015
    Verified Purchase
    I use this knife, which uses 1" wide break off blades, as part of my work as a contractor. I have tried at least 6 or 8 different snap off blade knifes in the past and this one is by far the best of them all. The blade is really sturdy and does not break off easily. The metal sheath that holds the blade keeps it straight and does not allow the blade to wobble around. The black knob that tightens down to hold the blade in position is easy to adjust with just my thumb and I can quickly loosen the blade, slide it in or out and re-tighten that blade with just one hand. The blade is also really easy to change and the yellow body is a nice size and fits well in my hand. The only thing this knife does not do is store extra blades in the body. But, I do not mind that since the replacement blades come in a really nice plastic case that is easy to carry in my tool belt. I have had two of these knives over the past 5 years and will get another one when my current one wears out (or I loose it...again).
    Report
  • D
    5.0 out of 5 stars Great knife
    Reviewed in the United States on May 11, 2023
    Verified Purchase
    I use the daily as a belt guy only down fall is I break the platic that holds the blades
    Report
  • David Kenny
    5.0 out of 5 stars Cuts Great
    Reviewed in the United States on June 5, 2019
    Verified Purchase
    I use this for terrain crafting - mostly to cut or sculpt Foamular rigid pink insulation foam. The blades are sturdy and build quality excellent. I’ve never had the blade move or slip even when well extended to cut thicker pieces.
    Report
  • Allison Hyde
    5.0 out of 5 stars Best utility knife purchase!
    Reviewed in the United States on August 6, 2016
    Verified Purchase
    I love this knife! It cuts through thicker materials with ease, is easy to change the blades, and is incredibly durable.
    Report