1-1/4" Reduced Shank Cobalt Masonry Drill Bit with 1/2" Shank

More Details

• Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys
• Gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools; performance is similar to uncoated tools
• Round shanks allow use with a wide variety of toolholding systems
• When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging

Reduced Shank

Reduced Shank Drills expand the size range capacity of a portable drill chuck. Common flute and overall length for minimal adjustment during tool changes.

135 Degree Split Point Tip

Cobalt Drill Bits have a 135 degree split point tip for self-centering and reducing thrust. Compared to a conventional 118 degree tip, these drills wont go "walking" on you.

Cobalt Drills are Tough

Cobalt Drills are manufactured to Aerospace Standard 907 and display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel.

3 Flute Drills

 These drills are for use on difficult steels and alloys, other difficult materials, and for core drilling or opening out existing holes. Three flute drills will directly penetrate hard tough steels and other materials. Entry is particularly accurate and no centering is required.