11/32" HSS Drill Bit Long Series Carded 2500-11/32S by Bordo Roller Cabinet The book also gives you

The book also gives you useful hints and describes the unique Tormek method of grinding

Spindle Speed Free Cutting Steel RPM: 1191

100 W high-performance motor and high torque make it ideal for most heavy-duty applications

Solvent-free

Optional Accessories:- 1/3 Sheet sanding papers

11/32" HSS Drill Bit Long Series Carded 2500-11/32S by Bordo Roller Cabinet The book also gives youBLACK FINISH (also called blue finish) A black finish is achieved by steam tempering, a thermal process resulting in a porous tool coating. This surface helps to keep lubricant on the tool, particularly important on the cutting edges, thus reducing friction and cold welding. The result is increased tool life. Black finish tools are generally recommended for ferrous applications where the oxide layer aids chip flow and heat dissipation. Specifications: