Morse Taper Reamer
A Morse taper reamer is a specialized cutting tool designed to create or refine a precise Morse taper in a workpiece. Morse taper is a standardized system of tapered shanks used to secure various tools and accessories (e.g., drill bits, end mills, arbors) in machine tool spindles, drill press chucks, and other holding devices.
How Morse Taper Reamers Work:
Design:
Tapered Body: The reamer's body features a precise Morse taper angle, which matches the standard taper for the specific Morse taper size (e.g., MT1, MT2, MT3).
Flutes: The reamer has straight or spiral flutes that run along the length of the body. These flutes contain cutting edges and channels for chip evacuation.
Shank: The shank of the reamer is cylindrical and may have a square end for use with a wrench or a driving slot for use with a drift.
Cutting Action: Like other reamers, adjustable reamers have multiple cutting edges along their flutes. As the reamer rotates in the hole, the cutting edges remove a small amount of material from the inner surface, gradually enlarging the hole to the desired diameter.
Spiral Flute Design (Optional): Some adjustable reamers have spiral flutes that help to draw chips up and out of the hole during the reaming process. This prevents chip clogging and ensures a clean and smooth cutting action.
Sizing and Finishing: Once the reamer is adjusted to the desired diameter, it is used to enlarge and finish the hole, creating a precise and smooth surface finish.