• Product Description
  • Product Specification
  • Reviews (89)

Specifications of Diamond Hole Saw:
●Material: high quality steel, diamond dust coating
●Color: Silver.
●Size: 6 - 50mm/0.23"-1.97"; 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 25mm, 26mm, 28mm, 30mm, 40mm, 50mm
●Quantity: 15 pcs

Features of Diamond Hole Saw:
●Good performance:diamond dust coating offers superior performance and cutting strength
●Wide application: coated core drill bit removes a complete circle from glass, tiles, marble, granite, ceramic or other materials and only needs water for lubrication.
●15 SIZES: No matter which size hole you want, it can always drill a perfect hole for you.

√How to Use Mohoo Diamond Drill Bits drill correctly
●Step1:Use pen to mark start of hole,and keep wet with WATER or COOLANT.
●Step2:Angle drill 45 degrees to start hole, and being drilling at low speeds.
Angle drill to vertical position once the hole has started.
●Step3:Minimum pressure.Slow speed down for exit hole or drill from the other side to prevent breakthrough.

If you smell burning, back off! Either your speed is too high or the pressure you're applying is too much.
You're drill bit should never be hot to the touch, not even warm.
●Slowest speed
● Always use lubrication (water)
● Minimum pressure

Customer Reviews

Average rating:
(89 Reviews)
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  • Morgan G Migita
    October 10, 2018

    Great for DIY

    Good for DIY. Keri and construction too thin for professional use.

  • liliyin
    October 02, 2018


    Quality is ok

  • Saverio C.
    July 20, 2018

    Five Stars

    Good quality I would purchase again

  • Karsen
    July 19, 2018

    Does the job as intended

    I used this tool to cut out holes in glass tiles applied to our kitchen and bathroom. I submerged the tile into a shallow basin of water and started a groove with the saw at a slight angle. I got fantastic results! This is the best buy for the best price!

  • Avid Reader
    July 13, 2018

    Solid for Knowledgeable DIY'ers

    These are basic, DIY tile bits. They're NOT professional grade. They're NOT commercial grade. They're very inexpensive, disposable-use bits. In all honesty, as a Professional with over 40 years of granite, stone, ceramic, and porcelain tile work, I can tell you that the $650 Hole Saw bit that I own (for cutting faucet holes in GRANITE), is still serviceable after 20 years... HOWEVER, that's because I haven't cut holes twice daily, 5-7 days a week, like the primary granite crews with whom I've worked. Over that time, I rarely saw them wear out one of those bits; most often it was the fabrication shop, who was burning through them, due to much higher volume of hole cuts. What is more likely, is that people FAIL TO HEED THE INSTRUCTIONS... in which case, you will either burn up a bit, not make a scratch on the surface, and/or break a piece of the bit, if you use a professional segmented bit. The key to having success with these OR ANY grade of hole saw bits, OTHER THAN constant water? STARTING THE CUT WITH THE BIT AT AN ANGLE... approximately 45 degrees to the surface. if you don't do that, then you WILL burn this bit up in a seriously hot few seconds. It's not segmented, so it creates AND holds more heat than a segmented bit... BUT, for a novice, it's the easiest style of hole saw bit with which to work. TIPS: 1) Tape the area with wide masking tape strips. 2) Draw a circle, on the masking tape, in the cut location, using a pencil and the hole saw bit. 3) Have a stream/tub of water or an assistant with water/spray bottle ready to help keep the bit cool. 4) ALWAYS wear safety glasses... and, to be honest, a face mask (like for paint gun games) isn't a bad idea. Flying bits of stone, glass, ceramic, etc. are deadly sharp and can leave a million little cuts on your face... not to mention any other exposed skin. 5) Bring the saw up to speed before starting the cut. 6) Start the cut on one side of the circle, with the bit on an angle, with just one part of the bit biting into the surface. 7) AFTER you get the cut started, and have a bite on the surface, BUT BEFORE you have a deep gouge in the surface, go ahead and lower the rest of the bit until the entire bit is drilling into the surface. 8) Use whatever tools you can, in order to keep the item, that you're cutting, stationary, while cutting the item. With those tips, and some trial and error, you should be able to make good use of these tools. Again... if you want something to use on a bunch of rent houses... then these probably are not what you need. If you can read and follow directions, then you can probably accomplish a DIY project... at least any not involving granite. I'm not 100% convinced that these will handle professional grade 3cm granite... but they might handle contractor grade 2cm. Note: I never recommend 2cm granite... it's simply too heavy and too thin, at the same time, making it very easy for novices to break it through any number of means, including improper support and uneven weight distribution while making cuts, and when moving the pieces AFTER cutting sink holes, in particular,

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