Cleveland C14509 Screw Machine Drill Bit 3/64 in Cobalt

Product Description

The CLEVELAND C14509 is a cobalt screw machine length drill bit designed for high-speed drilling in demanding materials. Built to M42 cobalt material grade, it delivers heat resistance and edge retention that standard high-speed steel bits cannot match. The 135-degree split point starts on contact without a center punch and reduces walking on hard surfaces. With an overall length of 1.375 inches and a flute length of 0.5 inches, the short body provides rigidity and reduced deflection in turret lathes, screw machines, and CNC drilling applications. Licensed HVAC techs, machinists, and trade professionals who drill into alloy steel or aluminum regularly reach for cobalt geometry like this one.

The C14509 is suited for drilling alloy steel, aluminum, and similar materials in production and maintenance environments. Its screw machine length profile fits standard drill chucks and quick-change tooling systems where a jobber-length bit would be too flexible or too long. It is a practical choice for tight-clearance drilling on equipment panels, brackets, and machined components encountered in HVAC, plumbing, and general mechanical service work.

Key Features

• M42 cobalt construction provides superior heat and wear resistance for heavy-duty drilling
• 135-degree web-thinned split point reduces thrust and self-centers without a pilot hole
• Screw machine (stub) length body maximizes rigidity and minimizes deflection
• Right-hand cut with regular spiral fluting for efficient chip evacuation
• Straight-cylindrical shank fits standard three-jaw chucks and collets
• Meets ASME B94.11M and DIN 1897 dimensional standards
• Diameter tolerance of +0.0000 to -0.0005 inches for precise hole sizing

Compatibility

Designed as a Series 2133 screw machine length drill bit for use in standard straight-shank drill chucks, turret lathes, and CNC drilling equipment. Primary workpiece materials include alloy steel and aluminum.

Installation Notes

Secure the bit fully in the chuck before operation and verify runout is within acceptable limits for the application. Power down and lock out any drilling equipment before changing or inspecting bits. Use appropriate cutting fluid or coolant when drilling alloy steel to extend tool life, even though this bit does not have through-coolant capability. Dispose of worn cobalt tooling per applicable shop safety procedures.