- Joined
- Oct 6, 2010
- Messages
- 699
I have been thinking about building a hand tapper or pillar tool for some time as I can’t seem to keep larger size tapped holes as straight as they should be. I have a little fixture like the one shown here, http://www.projectsinmetal.com/free...handle-tap-wrench-tapping-fixture-lathe-mill/ for the smaller sizes or I would be breaking the small taps in addition to making small crooked tapped holes.
A winter project for another welding table with a tapped hole array (lots of holes) for clamping has triggered some recent searches which turned up a lot of good ideas but this week a Craigslist listing changed my plans. I was able to score a factory made hand tapper, photos attached, for less than materials cost to get me to that point as a project. It won’t be as versatile as a pillar tool but should work well for tapping the welding table.
My hand tapper came with no tap holder adapters and I need to know where to get some or the best way to make my own. The vertical spindle of the tool has a ¾ inch internal hex with a c-spring inside to hold the adapter in place. There should be a set of 9 tap adapters according to the storage pockets in the top of the tool frame. My new-old tool has no name tag or other markings on it so I don’t know who would sell the adapters. My gut feeling tells me my hand tapper is a clone of the Cedarberg brand shown here, http://www.cedarberg.com/downloads/shopaccesCatWeb.pdf so purchasing the correct parts may be a shot in the dark.
Now for the questions!
1. Does anyone have a hand tapper with the above spindle internal hex dimensions with a brand name on it?
2. Has anyone made their own adapters? It does not look like much fun to make an adaptor with a ¾ inch external hex and a round-to-square ID to fit a tap. I am assuming this is what one looks like as I have never seen one.
3. Any other suggestions for a solution?
Thanks, Benny
In middle Tennessee
A winter project for another welding table with a tapped hole array (lots of holes) for clamping has triggered some recent searches which turned up a lot of good ideas but this week a Craigslist listing changed my plans. I was able to score a factory made hand tapper, photos attached, for less than materials cost to get me to that point as a project. It won’t be as versatile as a pillar tool but should work well for tapping the welding table.
My hand tapper came with no tap holder adapters and I need to know where to get some or the best way to make my own. The vertical spindle of the tool has a ¾ inch internal hex with a c-spring inside to hold the adapter in place. There should be a set of 9 tap adapters according to the storage pockets in the top of the tool frame. My new-old tool has no name tag or other markings on it so I don’t know who would sell the adapters. My gut feeling tells me my hand tapper is a clone of the Cedarberg brand shown here, http://www.cedarberg.com/downloads/shopaccesCatWeb.pdf so purchasing the correct parts may be a shot in the dark.
Now for the questions!
1. Does anyone have a hand tapper with the above spindle internal hex dimensions with a brand name on it?
2. Has anyone made their own adapters? It does not look like much fun to make an adaptor with a ¾ inch external hex and a round-to-square ID to fit a tap. I am assuming this is what one looks like as I have never seen one.
3. Any other suggestions for a solution?
Thanks, Benny
In middle Tennessee