PILOT CUTTER (4-40 AN507 SCREW)
SKU: 1000-100-33
#33 Pilot, 1/2" Diameter. 1/4x28 Thread. 3 flute, 100 degrees. Integral (fixed) pilot for cutting accuracy. High Speed Steel.
NARROW PILOT CUTTER (#40)
SKU: 1038-100-40
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).
ZERO FLUTE PILOT CUTTER
SKU: 4100-21
#21 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