My Shop Made Transfer Punch

[irnsrgn]

fig.01-A homebuilt transfer punch for holes up to 1-1/4 inch.



-- clockwise-left to right--
* 1-1/4 in shaft 1-3/4 inches long with a taper turned on one end and a 1/4 in hole bored thru using a lathe.
* 1 1/4 inch I.D. tubing 1 inch long faced square on both ends.
* 1/4 inch transfer punch.

fig. 02 - Tapered end of center piece set in hole to be transfered to workpiece.



fig. 03 - The outside tubing placed over the inside tapered part to line up the center part (to keep it straight up and down instead of cocked in the hole) and a 1/4 inch transfer punch inserted in the center hole to center punch the center of the hole for drilling.



I get lots of odd sized holes and this tool kind of eliminates making special sized sleeves and is simple to make and accurate.

irnsrgn

[This message has been edited by irnsrgn (edited 01-19-2005).]

[This message has been edited by irnsrgn (edited 01-19-2005).]

[Evan]

I gotta think about that. Seems like a good idea. I mostly need it for small holes though where accuracy may suffer.

[Thrud]

Well thought out. Similar to commerical units except they do not keep the punch perpindicular with a sleeve as yours does. A litle toolblack or some bluing and it will be spiffy - Nicely done!

[Allan Waterfall]

I like it,a good idea.

Allan

[John Stevenson]

<font face="Verdana, Arial" size="2">Originally posted by Evan:
I gotta think about that. Seems like a good idea. I mostly need it for small holes though where accuracy may suffer. </font>

Make it with a steeper taper.

[bernie]

That's a real good idea! Thanks for the pics, I'll have to put that on my thing to make list.

[ibewgypsie]

I worked in a place that had a large assortment of bolts, I'd cut them off right in front of the threads, put them in the company lathe and bore a 1/4" hole through them. I had a full set once.
When I left I was reminded it was company property as was my time to build them on my lunch hour. Asshole foreman has them now. You remember "dick" Or was it Pete?

David

[G.A. Ewen]

Good idea.

[spkrman15]

That is a good idea. Did you heat treat the punch?

Rob

[Paul Alciatore]

Neato!

Paul A.