"This knife is so badly designed. When you realise, against all logic, that you need a Philips screwdriver to place the blade, the blade retainer jumps out with its spring and hinge bar. These then need incredible dexterity to replace.
Yes. You only got one blade, when there were supposed to be three, but this is a very very expensive disposable knife. You will never use it again."
"Useless. There should have been three blades included - there is only one. Fitting the blade is impossible. I returned it straight away and had a refund. I bought this because Irwin is a good reputable make and I was very disappointed. Screwfix should stop selling it."
"bought this knife few months ago and it jammed as per the first reviewer,even tried releasing with a pair of grips but no joy ,i have various irwin hand tools and no probs but this knife is a waste of cash ,"
"Bought this a couple of weeks ago. Looks and feels good. However , after a couple of blade changes and cutting plasterboard, the quick change button no longer releases the blade. Try to undo the tiny screws inside to open it up and it is a pain to get back together. A waste of money. No longer use it"