Rotating Hand Tool - Valve Grinder?

by Tom Weems
(Euless TX)

Rotating Hand Tool - Valve Grinder?

Rotating Hand Tool - Valve Grinder?

This tool resembles a drill but the interchangable "bit" is flat and rather thin. The tool has a wooden knob on top and a hand crank on the side. When the crank is turned the "bit" turns approximately 250 degrees in one direction then reverses direction for approximately 110 degrees resulting in a progression in one direction. The "bit" is too thin to be a boring tool. I do not know its function.

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Aug 25, 2014
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found it in a junk box
by: waid

I found this same tool in a junk box at an auction for a buck...I took it to work and it has been a guessing game for someone to identify it...it was a fun game and some pretty good ideas, but no winners...thanks for this page that I stumbled upon that solved the riddle...my heros

Jun 24, 2012
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I have one with suction cup
by: George

i bought this item at a tag sale ha no idea what it was but thought it was cool. I thouht it might be for valves but not sure. thanks for info. wondering how old are they and who made them? mine is orange with spring and suction cup.

Jan 10, 2010
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Rotating Hand Lapping Tool
by: Toms' Boy

This tool is in my garage now. It is a valve lapping tool for seating valves on engines. At one time, the valves had a slot in them just for this purpose. It also had an interchangeable suction cup for the valves without the slot.

Dec 02, 2009
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Have one!
by: Steve

Among the many old tools in my Dad's shop, he has one. It is in fact a valve grinder and we used it when I was a kid. You place grinding compound in the seat and grind away. Perfect every time.

Oct 31, 2009
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Valve Grinder
by: GerryB

You guessed right, it is a valve grinder.
I can't tell you what engine it is for , but do remember seeing valves with a small slot in the top a long time ago, maybe 60 years.

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