| 摘要 |
A boring tool specifically designed for operation in a limited space consisting of an elongated tubular handle in which a drive shaft operates, power means on one end of said handle for driving said shaft, a universal joint connected to the drive shaft and housed in a bearing case. The case being formed in two parts, one part, the angular imparting part, being formed with a tubular extension and said one part having a flat upper surface and the opposite surface thereof extending angularly with respect thereto, the angle being greater than a 90 degree angle, the universal joint extending through the opposite surface. The other part of the case being attachable to the opposite surface of said one part and assuming the angle thereof. The rotatable shaft from the universal joint extends through the other part for the attachment thereto of a bit which extends at an angle to the elongated handle which is the same as the angle of the opposite surface relative to the elongated handle.
|
