#1 Home Improvement Retailer

Internet #300695493

Model #WKAR2

Auto-Retracting Safety Utility Knife

  • Auto-retracting blade
  • Quick blade change
  • Manufacturer's limited lifetime warranty
  • See More Details

Frequently Bought Together


Product Overview

The Crescent Wiss® Auto-Retracting Safety Utility Knife retracts automatically when cut is complete, even if slider is in forward position. This feature cannot be overridden under normal use, reducing workplace injuries. This knife accepts all standard utility knife blades with a quick blade change, and comes with three black-oxide coated blades.
  • Blade Retracts Automatically the Moment it Loses Contact with the Material Being Cut – Even if the User is Still Holding the Blade Slider Forward in the 'Open’ Position
  • Helps Reduce Workplace Injuries, Lowering Lost Time and Increasing Productivity
  • Accepts All Standard Type Utility Knife Blades
  • Quick and easy blade change
  • Ergonomic design
  • Includes Three Black Coated Blades
  • Knife is 6-1/2 in. long
  • Blade storage compartment in the handle holds additional blades

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.

Compare Similar Utility Knives

EasyCut Self-Retracting Blade Safety Cutter Stainless Steel Blade Plastic Body - Blue, Black
current product
Auto-Retracting Safety Utility Knife
FASTBACK 6-in-1 Folding Utility Knife with General Purpose BladeDolphin Knife
BrandGARVEYWissMilwaukeeBon Tool
NameEasyCut Self-Retracting Blade Safety Cutter Stainless Steel Blade Plastic Body - Blue, BlackAuto-Retracting Safety Utility KnifeFASTBACK 6-in-1 Folding Utility Knife with General Purpose BladeDolphin Knife
Knife TypeUtility KnifeFolding KnifeFolding KnifeUtility Knife
FeaturesBlade Storage,Lockable Blade,Retractable BladeBlade Storage,Lockable Blade,Removable Blade,Retractable BladeRemovable Blade,Retractable BladeBlade Storage
Hand Tool TypeUtility KnifeUtility KnifeUtility KnifeUtility Knife
Blade MaterialStainless SteelSteelBimetalSteel
Blade Width (in.).
View ProductView ProductView ProductView Product



Blade Length (in.)
1.33 in
Blade Width (in.)
Handle Length (in.)
Product Depth (in.)
Product Length (in.)
Product Width (in.)


Blade Edge Type
Straight Edge
Blade Material
Blade Storage,Lockable Blade,Removable Blade,Retractable Blade
Hand Tool Type
Utility Knife
Handle Material
Knife Type
Folding Knife
Lock Type
Side Lock
Number of Pieces
Product Weight (lb.)
0.52 lb
Replacement Blade Type
Utility Knife Blades
Tools Product Type
Hand Tool

Warranty / Certifications

Manufacturer Warranty
Limited Lifetime

Questions & Answers


How to change blade?

Asked by Penny January 4, 2018

Penny, on the right side of the knife there is a black switch, slide this switch down to where it says "change". Then slide the main trigger all the way forward and carefully pull the blade straight out of the knife. While the trigger is still held forward place a new blade in to the knife carefully. Release the trigger and then move the switch on the side of the knife back up to work.

Customer Reviews

  • 3.9
    out of 18 reviews
  • 80% recommend this product
Filter by:
Showing 1-10 of 18 reviews
Nice Knife with Great Safety Element
This knife intrigued me and I thought the auto retracting blade could be a useful feature under some circumstances. I read the brief instructions on the back of the pack and while I was able to figure out everything I needed to know some elaboration on the instructions would have been welcome. The knife looks nice and it has a good weight and a nice feel in the hand. There is a button on the right that is used when the blade is changed. This is to temporarily disable the auto retract feature. The manufacturer advertises that the knife accepts all standard blades and it comes with one blade. I found changing the blade a bit fiddly but I guess it is just a case of getting used to the tool. There is evidence that the internal mechanism is lubricated and there is no mention in the brief instructions of any ongoing maintenance requirements. To use the knife it is necessary to keep the sliding thumb button pushed forward and the knife does indeed retract the blade instantly when the cut is completed. I tried it on various materials and it takes only a little pressure to engage the auto-retract function. There is a warning on the packaging that with very light use the blade may not retract but it was difficult to recreate this under regular safe use. If I had a lot of slicing to do this knife might prove to be a tiresome on the thumb keeping the slide button pushed forward against its spring all the time but if was making a cut and putting the knife back down or in my pocket to do other work this tool would be very useful. It is now in my ‘go to’ tool kit where all my most used tools are.
by RIC
Sturdy Safety Knife
I have large hands so I appreciate tools that feel comfortable in my grip. This safety knife is very solidly built and feels sturdy and comfortable in my hand. There is a large black lever on the top. You must hold this smooth moving lever forward and hold it in place to expose the blade. I used it to cut several surfaces and each time the blade instantly retracted, even while my thumb was on the lever. It certainly feels like a well built and safe tool for projects.
by PF68
This is a perfect safety retractable blade. I use it...
This is a perfect safety retractable blade. I use it everyday@ work, opening cardboard and plastic boxes.
It’s not easiest to change blades...
It’s not easiest to change blades
by HomeDepotCustomer
General contractor required for the job site. Will save in...
General contractor required for the job site. Will save in a box after job is complete for the next time general requires it. Works exactly as designed.
by UnionYes
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
by HomeDepotCustomer
If I could rate at 0 I would
Biggest piece of garbage utility knife I’ve ever bought.
by Dan h.
excellent product...
excellent product
by RCR
An added safety precaution that could eliminate an injury. ...
An added safety precaution that could eliminate an injury.
by Mark
Showing 1-10 of 18 reviews