Precision machine reamers are designed to be held in the chuck of a machine such as a drilling or milling machine or a lathe and used under power to enlarge the size of a previously formed hole by a small amount but with a high degree of accuracy to leave smooth sides. Features: Straight Flute H7 Tolerance Parallel Shank Specifications: Product Code Diameter Flute Length Overall Length 060-031-10010 11/64" 1.1/8" 4.1/2" 060-031-10015 3/16" 1.1/8" 4.1/2" 060-031-10020 15/64" 1.1/2" 6" 060-031-10025 1/4" 1.1/2" 6" 060-031-10030 17/64" 1.1/2" 6" 060-031-10035 9/32" 1.1/2" 6" 060-031-10040 5/16" 1.1/2" 6" 060-031-10045 11/32" 1.1/2" 6" 060-031-10050 3/8" 1.3/4" 7" 060-031-10055 25/64" 1.3/4" 7" 060-031-10060 13/32" 1.3/4" 7" 060-031-10065 7/16" 1.3/4" 7" 060-031-10070 1/2" 2" 8"
