20 Most Recent Stanley Fatmax Xtreme Retractable Utility Knife Questions & Answers


How do I change the blade on the quick change/instant change knife? Warning: Blades are sharp and can cause serious injury. Be extremely careful when handling blades. Wear eye protection and dispose of used blades properly, such as wrapping in duct tape.


FULLY EXTEND THE BLADE.

Press down and forward again on the slide button until the button is in the full front of the top slot (0 through 3 in the below picture).

Note- the blade must be extended beyond the 3rd detent position. This will cause the slide button to remain in a down position, allowing the blade release button to operate.

PRESS AND HOLD THE BLADE RELEASE BUTTON ON THE FRONT SIDE OF THE KNIFE. (Step 4 in the below picture)

Note- if the blade is not fully extended beyond position 3) , the blade release button will not work.

Remove the old blade carefully.
Insert new blade.

NOW, RELEASE THE BLADE RELEASE BUTTON.
ENSURE THE BLADE IS LOCKED IN PLACE. If the blade does not retract, try carefully giving a slight tug on the blade to reseat.

Stanley Fatmax... | Answered on Feb 14, 2018


Are you using Stanley Blades or off brand? Hey, I use off brand but sometimes it does make a difference. Second, make sure the blade slider is clean. If you were cutting shingles, for instance, the tar gets in there and screws things up.. try WD-40 spray it liberally all over the blade slide and buttons. If that doesn't work and you purchased it at a Menards store, I can speak of experience they'll replace it no hassle.
I hope I helped

Stanley Fatmax... | Answered on Jan 09, 2018


It only goes in one way, try to loosen the screw a little

Stanley Fatmax... | Answered on Jul 12, 2014


1. Make sure the side lock is unlocked.
2. Push the thumb tab all the way to the front of the blade handle.
3. Insert the blade in the opening, you may notice two notches on the top side of the blade.
4. Press the small blade release button as you slide the blade into the knife. You may have to jiggle up and down to get the two notches on the blade fully into the handle.

If properly inserted, the exposed area of the blade should look very close to an equilateral triangle.

make sure both notches of the blade are inside the handle. They notch into the thumb lever.

good luck

Stanley Fatmax... | Answered on Jan 20, 2013


I have the same utility blade with yours.

Stanley Fatmax... | Answered on Aug 29, 2012


Hi Betsy,

Please go to this webpage and read the rants about this product.
Down towards the bottom are reviews written mostly by contractors and such. Review number 3 addresses your problems exactly. http://www.crunchgear.com/2008/12/05/review-stanley-fatmax-utility-knives/

Good luck

Handie Andie

Stanley Fatmax... | Answered on May 11, 2011


On the side there is a big gold wheel, twist counter clockwise and the case should split in half, the blade is held by a magnet, prise the old blade off and replace with new one, then put case back together and tighten gold wheel clockwise
Goodluck!

Stanley Fatmax... | Answered on Mar 07, 2011


I can't see what country you live in from your profile, but if it's the UK, you could try www.partmaster.co.uk . They sell parts for just about anything.

Stanley Fatmax... | Answered on Feb 28, 2011


If it is a 10-816 then Knife swivels open for easy blade change and clean out - no tools required, much like 10-999
If it is a 10-778, you don't really open it. You press little button on left side, behind the blade wiper, and this releases blade. Push red button on rear of knife, to open blade storage
if it is a 10-999 then press the button on rear and rotate the two halves.

Stanley Fatmax... | Answered on Jan 17, 2011


The model in your picture is a fixed blade utility knife (model 10-816). Your question asks for instructions for model 10-778, which is a retractable knife. I'll guide you through the 10-778 which you asked for, if you need instructions for the pictured 10-816 please re-post the question.

Push the thumb slide forward as far as it goes exposing the blade. Press the blade change button on the side of the knife (the small button on the left side near the blade) and pull out the old blade.
Insert the new blade and slide thumb slide back to fully engage blade in the internal lock.

Stanley Fatmax... | Answered on Dec 27, 2010


some stanley knifes require stanley blades only, or make sure the clip blade is in is seated in the grove completely.

Stanley Fatmax... | Answered on Dec 23, 2010


open the blade all the way and turn the knob to loosen, then scissor the two halves to open

Stanley Fatmax... | Answered on Oct 22, 2010


The gold looking circle on the side of the utility knife. Just unscrew that and it will pop open then you can change the blade. I looked everywhere and am unable to find the instruction or picture. I own one and that is why I am answering this for you. Please rate

Stanley Fatmax... | Answered on May 31, 2010

Not finding what you are looking for?
Stanley Fatmax Xtreme Retractable Utility Knife Logo

41 questions posted

Ask a Question

Usually answered in minutes!

Top Stanley Measuring Tools & Sensors Experts

Marvin
Marvin

Level 3 Expert

85108 Answers

Lawrence Oravetz

Level 3 Expert

10543 Answers

Vernon Taylor

Level 3 Expert

5446 Answers

Are you a Stanley Measuring Tool and Sensor Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

View Most Popular

Stanley Measuring Tools & Sensors

  • Stanley Measuring Tools & Sensors

Most Popular Question

just purchased stanley fatmax 10 778

  • Measuring Tools & Sensors
Loading...