.375 Dia., 1/4" Shank. 3 flute countersink. High speed steel. Three flute design. Made of High Speed Steel

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

This microstop reaches into very confined areas. Extended reach is great for getting down into narrow channels such as seat tracks. Uses 1/4-28 threaded cutters up to 3/8" diameter. Shaft travel is 1/4". Rated at 3000 RPM.

#30 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. Suita

3/8" Diameter 100 degree, 3 flute, countersink cutter with integral #30 Pilot. Fits all 1/4x28 Threaded adapters. Made of hardened high speed steel (HSS).

5/16" Diameter. Overall length 1.19". Solid carbide tip for long life. 1/4X28 thread. Fits standard microstops

Dia. Of cut: 1/8"to 27/64". 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.

Aircraft Counterbore, 1-1/4" Dia., 3/16" Pilot Hole, 2-3/4" Len. Made of High Speed Steel. Requires 1400P series pilot.

3/8" Diameter 100 degree, 3 flute, countersink cutter with integral #40 Pilot. Fits all 1/4x28 Threaded adapters. Made of hardened high speed steel (HSS).

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.

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.

#40 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. Suita