I found a wooden box that has several drill bits in it. It says Janc
Roto Bor on the box and the bits have never been used. I called Janc and they said they had sold that selection to Kramer Air Tool co. saw where this Roto Bor was the original item manufactured by Jancy i
1956. Does anyone have any idea if these are still used and if so, ho much they are worth
-- plynn