Overview Reviews Product Description HSS Right hand cut Left hand helix Bright and black finish Square end for tap wrench Hand reamers are used for the final sizing of holes Left hand spiral flute design pushes chips forward out of the hole and allows the reamer to be used in holes that have an interruption. Clarkson Osborn Catalog Product Videos Custom Field Diameter 12mm Flute length 76mm Overall length 152mm Package quantity/sold as each 1 Product Reviews Write a Review Write a Review × Clarkson-Osborn 12mm HSS Hand Reamer RE41620 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *