GMC 1250 – 1250W 110mm – Cuts through granite like butter

This did a good job of cutting some concrete slabs. The water connection could be a bit better, it kept blowing apart with too high a flow, but all in all i am happy with the result.

I bought this machine to avoid generating a lot of dust for my neighbours, by cutting 28mm concrete paving slabs, as well as 100mm concrete blocks. It will cut about 30mm deep, so it won’t cut right through 100mm blocks, but i cut all around and then used a hammer to knock the offcut off, then a chisel to tidy the remaining bits. It cut clean through a 28mm concrete paving slab. A great machine for the price, and perfect for my single diy landscaping project. What it didn’t come with is a small tap to adjust the flow rate near the machine. I bought a small inline 1/2′ tap on ebay, item number 323316467495 you still have to very carefully turn the flow of water on, as with too much flow rate the connector just pops off. I also bought a reducing bush so i could use 115mm 22mm bore blades : ‘spectrum jrb22-20 22. 2mm – 20mm reducing bush’ ebay item 391909146708and finally i could then buy turbowave diamond blade 115 x 22mm from toolstation, part number 83764 i believe this blade can be used wet or dry, but i can’t now find the reference that proves this. By providing this information i am not guaranteeing these products all work together properly, nor am i vouching for any of them, i have no association with any of these sellers. I provide this information as it took me a bit of research to find what i needed to make this tool really easy to use.

Yes, it does not come with a blade, but that is the only negative thing you can say about this tool. I should have brought this weeks ago i had to cut a square hole in the middle of a tile, i broke 3 tiles at £8 pounds a time, wore out 4 jig saw tile cutting blades and probably spent about 8 hours getting nowhere. It took me about 10 mins to cut a perfect neat square hole. I just eased the blade into the tile and it cut like a hot knife though butter. I think with the time saved and no more broken tiles and no more frustration i can say this has all ready paid for it’s self.

  • Not really a pro tool but did the job for me without spending too much money.
  • I saved 300pounds! . Highly recommend.
  • A couple of tips for using this machine

Fantastic piece of kit this is. Cut my 30mm granite worktop perfectly and like butter with a good quality blade. You won’t be disappointed.

Used to cut my slate slabs and for the price of a rental i now have it for future use. As others mentioned the water system isn’t ideal but the pressure to this is just controlled from the tap itself so not a problem.

Features of GMC GMC1250 – 1250W 110mm (4-1/3″) Wet Stone Cutter 230V

  • Cuts mineral materials such as marble, granite, natural stone and ceramics
  • Liquid-cooled cutting, water feed and coolant valve
  • Sturdy and corrosion-resistant all-metal base plate. Sound Pressure LP – 95dB(A). Sound Power LW – 106dB(A)
  • Adjustable cutting depth and bevel angle
  • Includes water hose connector

Did the job,but water connector needs rethink.

First of all, ignore the very bad reviews here:- most are just annoyed that this comes without a blade, whilst one obviously didn’t realise that the spindle nut is a left hand thread and snapped it. Another wants the trigger to lock when the thumb button is a safety interlock and not a latch. This really isn’t a bad little machine. The hose connector (which also gets a lot of complaints) works well enough at lower pressures. Turn the tap up full and it will blow the hoses off. Too little pressure and there is dust, so it takes a little practice to find a happy medium, but in all honesty anyone who can’t sort the water spray out shouldn’t really be let loose with a high power stone cutting saw. The water spray system looks very similar to the dewalt tile cutter system (in fact the whole machine is very similar) and it worked fine for me after 5 mins setting it up. I’m not a tradesman and i only wanted this for one specific job where i didn’t want all of the dust associated with dry cutting discs in an angle grinder. In reality it still made a lot more mess than i had hoped for, but it did the job and i didn’t spend the day in a cloud of dust (though i did get a bit wet). If i did this type of work a lot then i could justify a better tool (or maybe make a better shield for this), but for a one day job i have no complaints at the price.

I’ve no doubt that it will cut well, unfortunately the water connection system is extremely poor and i’ve so far spent too much time trying to stop it blowing apart under mains pressure. A mains regulator would solve that but why should i fork out extra to compensate for bad design?. Same as other reviewer, i had to make my own adapter to provide a reliable (and safe) water connection. Also note the 20mm arbor size, 20mm bore discs are actually harder to find in local outlets. Further note after actually using it. It did a great job of cutting some concrete blocks but with a massive problem. After a while i started to get electrical leakage onto the metal parts, i could feel the ac current if i touched them. Obviously not allowing full current flow, otherwise i might not be writing this now, but enough to indicate a problem. I believe it is caused by water spray getting sucked into the motor fan; dry testing doesn’t show any voltage on the metal. I’ve tried to replicate the issue since the first use but it didn’t happen; that doesn’t mean it won’t recur if i use it for another job (see sod’s law). As other reviewer has stated, should really be 110v for safety – even then i don’t think 110v shorting through your body is very pleasant.

Accurate cutter, steady and powerful.

Amazed at how good this cutter was in cutting slate cobbles 40-50mm thick (need to cut from both sides) really does the job for you without much pressure – just let it cut. The water hose came off a few times, so need to watch that, and not have too much water pressure through the hose, but then a decent flow of water to soak the slate. Really excellent tool for the price.

I saved 300pounds compare to quotes from companies addiotinally now i own my cutting stone cutter. I used it to cut my granite kitchen worktop (30mm) together with silverline 950392 marble cutting blade. 4 stars because of water inlet should have diffrent connection as had to use steel hose clips.

Cut my granite worktops within 2 mins and was easy to use. Best buy ever thankyou to who ever made this gadget for my kitchens ready to use at last without having professional cutters charging me crazy prices for cutting granite tops.

This would definitely be an absolute five star bargain if the crazy water connection was sorted out. Got soaked a few time till i managed a solution of sorts with plenty of self amalgamating tape as couldn’t find hose clamps small enough. Still got to turn mains tap only a half turn though. Cut through paving slabs no problem so if you can sort out the water supply issue it’s a great buy.

It should be noted that this product does not come with a cutting disc. The product is good, the water feed needs a modification to make it work well, apart form that it does a good job.

Had a very expensive quote to cut a granite worktop after doing some kitchen mods. Thought i’d give this a go and was not disappointed at all. Yes, the water connection could be better, but if you control the water pressure with a tap (garden hose) it works just fine. I managed to make three substantial cuts to a granite worktop with no effort whatsoever.

One thought on “GMC 1250 – 1250W 110mm – Cuts through granite like butter

  1. This review is from : GMC GMC1250 – 1250W 110mm (4-1/3″) Wet Stone Cutter 230V

    I bought this machine to avoid generating a lot of dust for my neighbours, by cutting 28mm concrete paving slabs, as well as 100mm concrete blocks. It will cut about 30mm deep, so it won’t cut right through 100mm blocks, but i cut all around and then used a hammer to knock the offcut off, then a chisel to tidy the remaining bits. It cut clean through a 28mm concrete paving slab. A great machine for the price, and perfect for my single diy landscaping project. What it didn’t come with is a small tap to adjust the flow rate near the machine. I bought a small inline 1/2″ tap on ebay, item number 323316467495 you still have to very carefully turn the flow of water on, as with too much flow rate the connector just pops off. I also bought a reducing bush so i could use 115mm 22mm bore blades : “spectrum jrb22-20 22. 2mm – 20mm reducing bush” ebay item 391909146708and finally i could then buy turbowave diamond blade 115 x 22mm from toolstation, part number 83764 i believe this blade can be used wet or dry, but i can’t now find the reference that proves this. By providing this information i am not guaranteeing these products all work together properly, nor am i vouching for any of them, i have no association with any of these sellers. I provide this information as it took me a bit of research to find what i needed to make this tool really easy to use.
    1. I bought this machine to avoid generating a lot of dust for my neighbours, by cutting 28mm concrete paving slabs, as well as 100mm concrete blocks. It will cut about 30mm deep, so it won’t cut right through 100mm blocks, but i cut all around and then used a hammer to knock the offcut off, then a chisel to tidy the remaining bits. It cut clean through a 28mm concrete paving slab. A great machine for the price, and perfect for my single diy landscaping project. What it didn’t come with is a small tap to adjust the flow rate near the machine. I bought a small inline 1/2″ tap on ebay, item number 323316467495 you still have to very carefully turn the flow of water on, as with too much flow rate the connector just pops off. I also bought a reducing bush so i could use 115mm 22mm bore blades : “spectrum jrb22-20 22. 2mm – 20mm reducing bush” ebay item 391909146708and finally i could then buy turbowave diamond blade 115 x 22mm from toolstation, part number 83764 i believe this blade can be used wet or dry, but i can’t now find the reference that proves this. By providing this information i am not guaranteeing these products all work together properly, nor am i vouching for any of them, i have no association with any of these sellers. I provide this information as it took me a bit of research to find what i needed to make this tool really easy to use.

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