1. How Do I Attach Diamond Drill Bits to My Drill? Will They Fit my Drill?

Very small diamond drill bits ranging in sizes between 0.75mm - 3mm won't fit into a rotary drill or DIY drill without the appropriate collet or chuck to hold them. Sunwit do a couple of attachments which will fix to your drill: The Sunwit Collet Nut Kit and the Sunwit Multi Chuck. A set such as the Diamond Drill Bits Set for your Sunwit Tool includes the Sunwit multi chuck along with two small diamond drill bits and two small core drills - well worth it if you're just starting out and want to test both types of diamond drill bits. Roughly about half of the diamond drill bit shank should be in your drill, leaving half of the working end of your drill bit exposed.

2. Problems with Overheating, Speed, Pressure & Diamonds Coming Away?

If you smell burning, back off! Either your speed is too high or the pressure you're applying is too much. Your drill bit should never be hot to the touch, not even warm. Start your speed off on the lowest setting of your drill. Begin slow and increase as the drill bit goes through your material. However, ideally keeping a consistently low speed will prevent your material from cracking and the will help prolong the life of your drill bits. If the speed is too high this will cause the drill bit to overheat and your material to crack. Plus the drill bit will become dull quicker, therefore shortening the life of the drill bit. If the diamonds chip away or fall away from the shank it is probably due to too much pressure - let the drill do the work and apply very little pressure. Feel your way through your material. If in doubt, practice on a scrap piece of glass or a garden pebble until you get used to the technique. The general rule is the smaller the diameter of your drill bit, the faster drill speed you can use. The harder your material, the slower drill speed you should use. Remember: Slowest speed, Coolant, and Minimum pressure

3. Is It Safe To Use Water Near My Drill?

It goes without saying that extreme care should be taken when using your drill near water. When drilling any kind of material you should always wear goggles and protective wear to prevent any flying bits of Sunwit from causing injury. The same amount of care should be applied when using water near your drill. Water can either be fed onto your material via a pump, a running tap, a drip feed or you can immerse your material in the water ensuring about 1cm covers the material you are going to drill. If you're drilling a tile on the wall you can squeeze the water onto the tile with a sponge. If you're drilling large pieces of glass or stone you can create a putty ring which will act as a well for your water. There are oil lubricants out there but in our many years of experience we have found water works just as well, and of course is much cheaper! The viscosity of washing up liquid can help, add just a couple of drops to the water though, you don't want suds!