Everyday Carry

WORKPRO Premium Retractable All Metal Utility Knife with 10 Extra Blades

A 3.2 ounce die-cast aluminum utility knife with tool-free blade changes, three slide positions and ten spare SK5 blades in the box.

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Mike ManningBy Mike Manning
Marine veteran, gym owner, dad
Recon Report: full review pendingPhotos: WORKPROUpdated 2026-09-17
More from WORKPRO

Product Information, Not A Review

Specs, pricing and buying notes taken from the manufacturer so you can compare this against whatever else you are looking at. I have not had this one in my hands. When it goes through real use it gets rewritten as a full review, with a rating and my own photos.

WORKPRO Premium Retractable All Metal Utility Knife with 10 Extra Blades

Quick Specs

CategoryEveryday Carry
BrandAmazon
ReviewedSep 17, 2026
Body materialDie-cast aluminum alloy with a rust-free powder coat
Weight3.2 oz (listed as 91 g)
Size6.3 in x 1.7 in x 0.9 in
BladeSK5 steel razor blades, heat treated at 1922 F, up to 64 HRC
Blade positions3 adjustable slide positions; retracts and locks inside the metal frame
Blade changeQuick-release button, no tools needed
Included10 extra double-use blades

What Stands Out

  • All metal die-cast aluminum body with a rust-free powder coat, and it still lands at 3.2 oz
  • Quick-release button swaps blades with no tools, so a dull blade gets changed instead of tolerated
  • Three adjustable slide positions plus a locked retracted position inside the metal frame
  • SK5 steel blades, heat treated at 1922 F to a listed 64 HRC
  • Ten extra double-use blades come in the box

What To Check

  • The listing does not mention a pocket clip, so plan on a pocket or a door pocket
  • Spare blades ship in their own dispenser box rather than stored in the handle, going by the product photos
  • The drop test and hardness figures are manufacturer claims with no third party testing published

Box day at a house with kids is basically a second job. Cardboard, zip ties, carpet scraps, drywall, the plastic strapping on a new bike. This WORKPRO is one of Amazon's best sellers in utility knives, and it is the kind of tool that quietly replaces three worn out ones.

The pitch is simple. Metal body instead of plastic, a button that swaps blades without hunting for a screwdriver, and a blade that slides back into the frame and locks when you are done.

Safety first, because this one matters. A razor knife is not a kid tool. The blade retracts and locks inside the metal frame, so use that every single time you set it down. The box of ten spare blades belongs on a high shelf in the garage, not in a drawer little hands open.

The Numbers That Matter

3.2 oz in an all metal body. Die-cast aluminum with a powder coat, which is the part that decides whether the knife survives being dropped on a concrete floor or run over in a truck bed.

Three slide positions. Short exposure for cardboard so you do not slice what is inside the box, full extension for carpet and drywall, and fully retracted for storage.

Tool-free blade change. A quick-release button, so a dull blade gets swapped in about five seconds. Dull blades are what make people push harder, and pushing harder is how hands get cut.

SpecWhat it decides
Die-cast aluminum body, 3.2 ozWhether it survives the garage floor
SK5 blades, up to 64 HRCHow long an edge lasts before the swap
3 slide positions plus lockedCut depth, and safe storage
Quick-release blade changeWhether you actually change the blade
10 spare blades includedHow long before you buy refills

Who It Is For

The dad breaking down a mountain of Amazon boxes on recycling night, trimming shelf liner, or cutting a strip of carpet pad for the garage. If you want a folding cutter that rides on a keyring instead of living on a workbench, the Gerber EAB Lite takes the same style of blade in a pocket-size frame. For the bag it lives in, look at the WORKPRO 16-Inch Wide Mouth Tool Bag. Put on the DEWALT DPG82 Concealer Goggle before the cutting turns into grinding.

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The Short Version

The plastic box cutter in the junk drawer is always the tool that dies first. This one is metal, changes blades without a screwdriver, and locks the blade away when the boxes are flat. Cheap fix for a tool the garage already uses every week.

Mike Manning

MIKE MANNING

Founder, Every Dad Carry

Dad | Coach | Marine Corps Veteran

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WORKPRO Premium Retractable All Metal Utility Knife with 10 Extra Blades

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