Overview Reviews Product Description HSS 1/4"-28 threaded shank provides a secure fit in the tool holder Black oxide finish for increased wear resistance and added lubricity 135° Degree split point for fast penetration and accurate starting (self-centering) which eliminates "walking" and reduces the thrust force needed Used in portable angle drilling tools drilling low tensile strength materials in confined areas Clarkson Osborn Catalog Product Videos Custom Field Diameter 5/32" Flute length 5/16" Overall length 9/16" Package quantity/sold as each 1 Product Reviews Write a Review Write a Review × Clarkson-Osborn 5/32" x 1/4"-28 HSS Threaded Shank Adapter Drill DR66010 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *