On page 9-99 of the RV14 plans, between #6 & #7 there is a NOTE to taper the pilot of a #40 countersink cutter per figure 4 to aid in the countersinking of the holes in the angled trailing edge wedge. We now offer a #40 countersink cutter with the pilot

1/2" Dia, 3/16" Pilot Hole. Made of High Speed Steel. Requires AT404 series pilot.

7/16" Dia, 3/16" Pilot Hole. Made of High Speed Steel. Requires AT404 series pilot.

3/8" Dia., (For AT402 & AT403)

5/32" Dia., (For AT402 & AT403)

Dia. Of cut: 3/16" to 35/64". 1/4" shank. 100 degree cutter. High Speed Steel. The "zero flute" design is a single hole drilled through the head of the cutter, which makes it virtually chatter-free. And since it has no flutes to shift inside the hole, th

5/8" Dia, 5/16" Pilot Hole. Made of High Speed Steel. Requires AT404 series pilot.

7/16" Dia, 3/16" Pilot Hole. Made of High Speed Steel. Requires AT404 series pilot.

9/16" Dia, 3/16" Pilot Hole. Made of High Speed Steel. Requires AT404 series pilot.

5/16" Dia, 5/32" Pilot Hole. Made of High Speed Steel. Requires AT404 series pilot.

3/8" Dia, 1/8" Pilot Hole. Made of High Speed Steel. Requires AT404 series pilot.

3/8" Dia, 5/32" Pilot Hole. Made of High Speed Steel. Requires AT404 series pilot.