Century Drill and Tool Silver Deming Bit

Century Drill and Tool Silver & Deming bits (also called S&D bits, reduced shank drill bits or large diameter twist drills) are made for drilling large holes in metal and other tough materials. The Silver & Deming design has a reduced shank. That lets a drill press or heavy-duty drill with a 1/2" chuck run bits with cutting diameters larger than the chuck itself.

Key Features:

• Silver & Deming style: The reduced shank fits 1/2" or larger chucks, so one drill can handle a wide range of hole sizes.
• 118 degree point: The point angle is suited to general-purpose drilling in steel, aluminum, cast iron and wood.
• High speed steel construction: Industrial-grade high speed steel holds an edge in demanding, heavy-duty applications. Cobalt versions are made for harder metals, including stainless steel.
• Surface treatment: Black oxide and duo-tone finishes help resist corrosion and heat, hold cutting lubricant, and aid chip removal.
• Versatile use: Suitable for fabrication, maintenance, construction and shop work where large-diameter holes are required.

Century Drill and Tool is a long-established brand of drill bits and cutting tools. Choose the bit size and material that suit your application. Using cutting oil and a steady, appropriate drilling speed will extend bit life.