Frequently Asked Questions

The major difference between the PG750X and the PG350X is the number of holes each of the tile drills can produce. PG750X can drill 30-70 Holes compared to the PG350X - 20-30.

The PG750X has a much higher quality diamond compared to the other tile drills this gives it the ability to last longer.

To achieve the maximum amount of holes from the PG750X follow a few simple steps. Keep the RPM high, 2000-3000 RPM is the optimum speed for tile drilling.

Osculate the tile drill when drilling (this will improve the drilling performance and help to remove debris from the drilled tile).

Let the wax coat the diamonds after drilling (30 secs). Tap out all the debris from the centre hole of the tile drill (the most important step).

Cool / rinse the tile drill in water (this will remove the remaining debris from the tile drill). The steps above will ensure you get the maximum from the PG750X tile drill.

No, the PG750X is a vacuumed brazed diamond product which means the diamonds are directly bonded to the tile drill, this means using a dressing stone will damage the tile drill and not re-sharpen it.

The diamonds on the PG750X are of such a high quality re-sharpening them is never required. 

The PG750X "Hex" (drills with the 490.102.*** part number) maximum speed is 3,000 RPM. The PG750X "M14" (drills with the 490.202.*** part number) maximum speed is 11,500 RPM. Take a look at the Marcrist PG750x drill bit

The PG750X can be used with water. This must be a constant flow of water.

Using a sponge and keeping the tile drill damp will cause more damage to the tile drill. If the tile drill is just damp this will create a paste and will cause damage to the diamonds on the tile drill.

Under damp conditions, the internal wax will not activate within the tile drill and not protect the diamonds also. In all cases the optimumum way to use the PG750X tile drill is dry.

Yes, osculating the tile will make the hole fractionally bigger.
Please remember the tile drill is only one part of the fixing solution, the rest of the hole in the masonry is drilled with the masonry drill bit which can be kept nice and tight insuring the fixing is securely fitted in place.

Take a look at the multi material drill bit for cordless machines with a revolutionary tip design for ultimate speed and life.

The maximum speed for the PG350 is 2600 RPM for the 6mm , 8mm & 10mm. And 1500 RPM for the 20mm and above.

Yes, the 6mm , 8mm and 10mm can be re-sharpened by drilling into a soft ceramic tile dry. The 20mm and above can not be re-sharpened due to the technology used on the tile drill.

Yes, the 6, 8 & 10mm tile drills can be used with a impact driver just keep the feed pressure low and let the bit do the work, if the impact comes in just back off the pressure as all you need is the rotation part of the impact driver.

No, the PG850 must be used with water using the PG850 water swivel only.

No, the PG850 must be used with the PG850 water swivel, the reason for this the PG850 must have a constant flow of water,  the water flow must be from the inside to the outside of the tile drill.

½ x 20UNF.

If the tile is stuck inside of the tile drill and is hard to remove, try using the extraction pin this will safely aid you in removing the tile from the tile drill.

Never force the tile drill as this may stretch the diamond crown and may cause it to crack.

The PG850 tile drills will work between 800-3000 RPM.
Match the recommended speed as close a possible to the machine you are using.