Overview Reviews Product Description HSS Black oxide finish 135° Degree split point (self-centering) which eliminates "walking" and reduces the thrust force needed Heavy web construction gives this drill higher torsional strength which allows it to be used in harder materials with heavier feed rates Black oxide surface treatment increases lubricant retention, wear resistance and reduces chip welding Clarkson Osborn Catalog Product Videos Custom Field Diameter #47 Flute length 1" Overall length 2" Package quantity/sold as each 10 Product Reviews Write a Review Write a Review × Clarkson-Osborn #47 HSS Heavy Duty Jobber Drill Bit DR74247 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *