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Ron Lendon's Aircraft Mfg.
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Date:  9-12-2006
Number of Hours:  2.00
Manual Reference:  
Brief Description:  Fly Cutter & fixture for cutting lightening holes

I made up a 1/4" dowel to fit my 3/16" piloted flycutter by grinding one end of a hardened dowel pin down to fit in the hole.

I took a piece of hardwood plywood, drilled a 1/4" hole on the drill press, and then clamped that piece to the table to act as the pilot hole. Using the dowel on the flycutter should make it last longer.

I am using a 3/8" variable speed drill. First line up the hole, then add the clamps. Cut slow to start and after marking the part add some cutting oil, I used 3 drops Tap Magic.
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Flycutter with Dowel pilot

Flycutter with Dowel pilot

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Hardwood Plywood

Hardwood Plywood

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Lining up the hole to be cut.

Lining up the hole to be cut.

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