Cleveland C14276 Screw Machine Drill Bit 36 Cobalt

Product Description

The CLEVELAND C14276 is a screw machine length drill bit engineered for demanding production and shop environments. Built from M42 cobalt high-speed steel with a coated finish, it delivers extended tool life when drilling tough materials including alloy steels and aluminum. The bit features a 135-degree split point that reduces walking and minimizes the need for a center punch, paired with a parabolic flute design that promotes efficient chip evacuation. Overall length is 1-13/16 inches with a 13/16-inch flute length, making it suited for close-quarters drilling in machine setups and hand-held power tools. Diameter tolerance is held to +0.0000 to -0.0005 inches, meeting ASME B94.11M standards.

This wire gauge size 36 bit, measuring 0.1065 inches in diameter, is a heavy-duty grade tool intended for use on alloy steel and aluminum workpieces in both production machining and general metalworking applications. The straight-cylindrical shank fits standard chucks without modification. Its screw machine length profile — shorter than jobber length — provides added rigidity and reduced deflection, making it especially effective in drill presses, CNC machines, and turret setups where stub-length tooling is preferred.

Key Features

• M42 cobalt tool material rated for heavy-duty cutting in alloy steel and aluminum
• 135-degree split point reduces thrust and eliminates center-punch requirement
• Parabolic flute geometry promotes fast, clean chip evacuation
• Web-thinned parallel web construction lowers cutting resistance
• Screw machine (stub) length adds rigidity and reduces deflection versus jobber bits
• Diameter held to +0.0000 to -0.0005 inch tolerance per ASME B94.11M

Compatibility

Designed as a screw machine length replacement drill bit for standard straight-cylindrical chuck applications in drill presses, CNC turret setups, and production machining equipment accepting 0.1065-inch shank tooling.

Installation Notes

Installation and tool changes should be performed with the machine fully powered down and the chuck at rest. Machinists and tool-room technicians should verify chuck capacity matches the 0.1065-inch shank diameter before seating the bit. Secure the shank fully in the chuck and confirm runout is within acceptable limits before beginning a cut. Follow applicable shop safety and OSHA machine-guarding requirements when operating drilling equipment.