Marxman Chalk Non- Permanent DIY Marking Tool Pen

It does what it's designed to do. Not sure how many squirts it will put out

Very good for marking I cannot fault this great design.

What can I possibly say about this remarkable device?Well, for years I have followed the traditional route when fitting shelves or attaching battens to walls. You drill a hole, offer the batten to the wall and ensure it is level and then you fiddle with an old screw pushed through the hole or a pencil with a very long and fragile lead hoping it won't snap before leaving its vital mark.It's all the more frustrating when, after marking any number of points you remove the batten only to discover most of them are invisible due to the wall surface which in the case of pebbledash resists almost all attempts to leave a clear and accurate mark for subsequent drilling.Then I discovered the Marxman Marx!Having drilled your holes in the batten and ensured it is in the correct position on the wall you just offer the conical tip of the marxman to the hole and, rather like an inhaler in principle, you give a little extra press. You do this for each and every hole and, when the batten is removed you see a series of accurately placed fluorescent green dots precisely aligned with the holes in your batten. You just drill on the green spot!It works equally well with ready made items such as shelf brackets or timber up to about 50mm. Thicker timbers can use the big brother version designed to cope with 100mm - and it does.I rate this little invention as being right up there with the likes of the Dyson which looked at an established method of doing something and came up with a better solution.No more stripping a biro so you can poke the nib down the hole. No more wierd trimming of pencils or peering at a wall like a mad person looking for tiny clues. The Marksman Marx really works and it is a brilliantly simple solution to an annoyingly common problem.You can see the original pitch on Dragons Den online and it's well worth a look. Personally, I think it is something everyone should have in their toolkit and I guarantee you will always find one in mine.

Ok item

This product was on Dragons Den programme in the UK. It was snapped up by the Dragons and the rest is history. Very pleased as i have used it a few times and it does the job.

***This is a game changer *** somehow I have Only just discovered this type of product. It’s a must have if you’re a DIY’er or professional. Makes marking anything so easy. For example just installed a double Exterior socket on my pebble dashed wall on my house. It’s awkward to mark the holes with a pencil or pen due to the stoney material. This marked the drill holes with a good burst of green chalk that was highly visible. Nice

I was surprised how well this marked. It shot straight through 4 inch concrete post holes to mark the timber clamped on to it. While the mark is a bit diffuse and not absolutly accurate it does mark where holes need to be. I allowed some give in the holes to allow for final positioning when tightening bolts.I would expect smaller holes that are less deep to render a more accurate mark. Worth keeping in the toolbox.Update after further purchase...Forget the bad reviews, how can this marker leave a bigger mark than the hole it is being shot through?Push (or clamp) the item with the holes against whatever you are attaching it to and shoot a blast of chalk in each hole. I sometimes do 2 shots to be sure. You will get a mark the size of the hole. What could be simpler? I now keep 2 (normal and deep) in my pencil drawer. This is my go to marker for matching holes for battens, posts etc. Yes, it's expensive, but it saves time and has been accurate for me, so saves on mistakes too.

Used to mark the position of a large wall cabinet which I wanted to be wall mounted. It is accurate and very easy to use.