Keen Kutter Boring Machine
This unusual boring machine has a hollow 2 jaw chuck, hollow spindle, and matching hole in the top plate of the frame to allow the use of long shank bits. The name "Keen Kutter" is cast in the iron top plate. There is no mention of a boring machine in Heuring's Keen Kutter book and I have not seen or heard of another example.
One of the crank extensions with locking collar is a machined replacement. While it is probably stronger than the original, it is not identical. Also, the steel rack on the same side is broken and a screw has been used to secure it to the wood frame. Both of these repairs are old and neither affect the machine's function.
The automatic lift engages when the sliding member contacts the adjustable depth stop, causing the crank shaft to slide to the right, engaging the lifting gear. A similar mechanism causes the shaft to shift to the left at the top of its travel to lock the mechanism up. The auto lift works well, but the auto latch works only with some practice and help from the user.
A good 1 1/2" bit is included.
A closer view.
The top plate marked "Keen Kutter".
The replacement adjustable crank lever and locking collar.
The break in the track and the screw to secure it.
The two jaw hollow chuck accepts bits of any shank length and up to around 5/8" diameter.
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