This series of Mills are designed to cover the various sizes of pipe. The inside member produces a chamfer at 30° and the outside member 45°. A liberal forward or backward adjustment accomodates different wall thicknesses. The cutting teeth are so developed as to preclude chatter and provide ample chip room.
Operating Speeds – Moderate speeds of about 100 R.P.M. to about 200 R.P.M. are recommended for these cutters. Start at a slower speed and increase until best results are obtained.
Cutting Teeth – Are designed to give a shearing cut. They curl the fine chips away from the cutter to avoid loading.
The Ring – Or outside member is adjustable for more or less relative chamfer on the outside edge, and is secured after adjustment by socket set screws. the inside member produces a chamfer of 30° angle with C/L and the outside member 45°. Operating speeds range from 50 to 200 R.P.M. depending on the size of cutter, material and work condition.