Dreamer® General Use Guidelines
The following methods and usages are recommended in order to
achieve the full precision potential of the Dreamer®:
The Dreamer®, as it is designed and manufactured, is meant to be used in through-holes only. See below on information regarding usage in blind holes.
The drill, or pilot, length (front portion of tool), should be greater than the thickness of the material to be drilled and reamed. For best results, the drill tip should break free from the constriction of the material in order for the reamer portion to “float” free to achieve final size and roundness.
Coolant should be used. If no coolant is used, the tool could cut oversize.
A reamer guide bushing is highly recommended. The bushing and jig should be located above the work by at least 1/8”, so that chip clearance and evacuation can be achieved. Long tools, such as taper and aircraft lengths, may have whip and runout if not constrained by a bushing. If using a bushing, it is important that a reamer bushing, and not a drill bushing, be used. The Dreamer® is produced to a plus tolerance (similar to all standard reamers), while drill bushings are typically produced to smaller positive tolerances, corresponding to the looser negative tolerances of typical twist drills. It is possible that a Dreamer® would not fit, or would bind, in a drill bushing.
Although the Dreamer® is not designed to be used in a blind hole, many customers report satisfactory results using it in such a situation (Dreamer Cutting Tools, Inc. does not warrant the precision of the tool in such a situation.) If used in a blind hole, the tool should be operated with a pecking motion, and the hole should be flushed with coolant during the operation to aid chip evacuation.
The Dreamer®, as it is designed and manufactured, is meant to be used in through-holes only. See below on information regarding usage in blind holes.
The drill, or pilot, length (front portion of tool), should be greater than the thickness of the material to be drilled and reamed. For best results, the drill tip should break free from the constriction of the material in order for the reamer portion to “float” free to achieve final size and roundness.
Coolant should be used. If no coolant is used, the tool could cut oversize.
A reamer guide bushing is highly recommended. The bushing and jig should be located above the work by at least 1/8”, so that chip clearance and evacuation can be achieved. Long tools, such as taper and aircraft lengths, may have whip and runout if not constrained by a bushing. If using a bushing, it is important that a reamer bushing, and not a drill bushing, be used. The Dreamer® is produced to a plus tolerance (similar to all standard reamers), while drill bushings are typically produced to smaller positive tolerances, corresponding to the looser negative tolerances of typical twist drills. It is possible that a Dreamer® would not fit, or would bind, in a drill bushing.
Although the Dreamer® is not designed to be used in a blind hole, many customers report satisfactory results using it in such a situation (Dreamer Cutting Tools, Inc. does not warrant the precision of the tool in such a situation.) If used in a blind hole, the tool should be operated with a pecking motion, and the hole should be flushed with coolant during the operation to aid chip evacuation.
