A neat Prinnz Drill and Fixed Speed Transformer which is liked by
many Eggers because of its light weight and versatility

Large enough for Goose & Ostrich Eggs

The No 11 is the recommended disc for straight cutting. However some eggcrafters prefer prefer the BS27E, or the BS27D disc. The important thing to remember is to only use these larger discs for straight cutting. If you try to cut curves with them yu will either damage the diamond disc or crack you egg.

When cutting curvesuse the smaller diameter discs. For a gentle curve use the BS515A with the split adaptor, as the curve becomes tighter, you should use the BH515B or BH515C with the split adaptor. If you prefer burs with a longer shaft use the BS27H.

For Filigree work or cutting unusual shapes the BS1B comes into its own. This diamond bur comes to a point, there is not much diamond grit on a point so do not use this bur for making holes in your egg or you will find yourself 'Punching' a hole in the egg and breaking it. The rule is always drill a small Pilot Hole at the point where you want to start your filigree work. The Tungsten Carbide bur 129/1 is ideal for this

If you blow your own eggs the Diamond Bur BS8 is designed to make neat round holes in the end of eggs. Using the BS8 you can make the hole small or by continuing make it larger. As with all pointed burs DO USE THE 129/1 to make a starter hole. If your design includes petal or droplet shapes then use one of the 3 sizes of 'JEAN BENNETT FLYlNG SAUCERS'

Because air drills go so fast, I prefer to use tungsten carbide tools as they last longer than the diamond types at these high speeds. Most of the time you should be using the tungsten filigree bur 1169L, this is end cutting as well as side cutting! Now and again, to work in tight corners, use the BH48. For straight cutting use the BH515A, BH515B. For petal or droplet shapes use the air drill JEAN BENNETT FL Y1NG SAUCERS if you blow your own eggs use the FG4 but remeber to make a startet hole with your 1169L bur. For tight curves the BH515C can be useful.

Ostrich eggs are very thick, difficult to cut, & cutting tools can easily overheat. The golden rule is to stop often, to clean the egg dust off the burs. For straight cutting use the No 11 disc. For gentle curves use the BS27E. If the curve is too SHARP you will damage the disc so change to a smaller disc such as the BH515A with the SPLIT ADAPTOR, for even tighter curves use the BH515B. This disc will not cut all the way through the shell so you will have to follow up with the BS1B. It is slow going and there is no easy option. If your design includes petal or droplet shapes use the JUMBO JEAN BENNET FLYING SAUCER.