Bordo HSS Morse Taper Shank Drill Bit

• DIN345.
• Taper Shank Twist Drills have conical shanks suitable for direct fitting into the tapered spindle holes of drill presses and other machines, lathe tailstocks and driving sleeves or sockets.
• This coupling is best described as a male cone within a female cone, and has self-locking and self-centering benefits.
• HSS with 118° notched point suitable for a variety of drilling applications and conditions.
• To achieve optimal performance and extended tool life, suitable lubricating/cutting oils or coolant fluids are recommended for most drilling operations.

Notched Point

• A variation on standard chisel point providing faster starting and reduced drill wander. Suitable for general purpose drilling.

Drill Bit Surface Treatment

• Black 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.