5/8" Dia., Length 2-3/4", pilot 1/8". used with 1400P series pilots. 4 flute. Made of High Speed Steel. Requires 1400P series pilot.

Aircraft Counterbore, 1/2" Dia., 1/8" Pilot Hole, 2-3/4" Len. Made of High Speed Steel. Requires 1400P series pilot.

Aircraft Counterbore, 27/32" Dia., 3/16" Pilot Hole, 2-3/4" Len. Made of High Speed Steel. Requires 1400P series pilot.

Dia. Of cut: 3/32" to 1/4". 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.

3/8" Dia., 3/32" Pilot Hole, 2-3/8" Len. Made of High Speed Steel. Requires 1400P series pilot.

#28 Pilot, 1/2" Diameter. 1/4x28 Thread. 3 flute, 100 degrees. Integral (fixed) pilot for cutting accuracy. High Speed Steel.

7/16" Diameter. Overall length 1.19". Solid carbide tip for long life. 1/4X28 thread. Fits standard microstops

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

Aircraft Counterbore, 11/16" Dia., 3/16" Pilot Hole, 2-3/4" Len. Made of High Speed Steel. Requires 1400P series pilot.

3/4" Dia, 1/4" Pilot Hole. Made of High Speed Steel. Requires AT404 series pilot.

5/16" Dia, 1/8" Pilot Hole. Made of High Speed Steel. Requires AT404 series pilot.

#12 Diameter, 1/4-28 thread. The unique "high-hook" design of these countersink cutters allows smooth, easy cuts with virtually no chatter. Body diameter is 1/2. They will fit into a stop countersink or they can be used directly with an angle drill. Suit