need to buy trim saw

Does anyone where I can buy a trim (a.k.a slab) saw in Bangkok. Tried Homepro etc. It is for rough gemstone cutting, a tile saw is no use as it is too fast hence dangerous. I know I can get one at Sampeng market but I hate the place so am hoping to find somewhere on the East side of Bangkok, I live in Bangna. Probably something like this, although this actual one is for wood.

https://teakdoor.com/clear.gif

Have you been to Chanthaburi and asked them?

Is this to break up the rocks from the Leipzig heist?