High Speed Steel Brown & Sharpe Taper Finishing Reamers are multi-fluted, end cutting tools used to resize previously formed holes to suit standard Brown & Sharpe taper shanks. The straight flute design is suitable for reaming Brown & Sharpe taper sleeves in a variety of normal ferrous and non-ferrous materials. Brown & Sharpe reamers are driven by a tap wrench attached to the square drive area of the shank. The cutting end is ground with a 45 degree chamfer angle for easy entry into the hole. Suitable cutting oils or appropriate coolant fluids are recommended for most reaming operations.