Used an old #4 round carbide bur because copper so very soft. At first, my pressure and speed of movement weren’t in sync and the bur grabbed the metal. Immediately I knew how to correct it and then all was well. At best, it’s difficult to get a razor sharp line without getting the perfect combination of bur sharpness / dullness and the right pressure / speed of your hand.
The total job was about 10 minutes for a total of $50. Do the math. That’s the everyday potential with the drill.
The old boy was thrilled and will put these away until the twin girls are old enough to use them. They’re 9 months old now. Nothing like planning ahead for a 4th birthday!
The September class is on a last-minute special for $900. Regular Workshop fee is $1600. Only 3 seats left. Deal ends end of the day Monday, August 31.
-Ken • 214.250.6958