Value Collection 01378272 Cobalt Drill Bit Size 27

Product Description

The VALUE COLLECTION 01378272 is a cobalt screw machine length drill bit designed for heavy-duty metal drilling applications. Built to a wire gauge size 27 with a decimal equivalent of 0.1440 inches, this bit features a 135-degree split point that self-centers on contact and reduces walking on hard or slick surfaces. The overall length is 2-1/16 inches with a 1-inch flute length, making it well suited for work in tight clearances or on drill presses and screw machines. A straw finish indicates the cobalt alloy's heat resistance, and the straight shank accepts standard chucks without adapters. Machinists, toolroom technicians, and metal fabricators are the primary users.

Screw machine length bits are shorter than jobber-length bits, providing added rigidity and reduced deflection when drilling through ferrous metals, stainless steel, cast iron, and other hard materials. This bit is appropriate for production drilling on manual drill presses, CNC machines, and turret lathes where chuck clearance is limited and hole-to-hole repeatability matters. The 135-degree split point geometry is especially effective in harder materials where a standard 118-degree point would require center-punching before drilling. Right-hand cutting direction is standard for conventional spindle rotation.

Key Features

• Cobalt construction provides heat resistance and extended tool life in hard metals
• 135-degree split point self-centers and reduces the need for a center punch
• Screw machine length body adds rigidity and minimizes deflection compared to jobber-length bits
• Right-hand cutting direction for use with standard spindle rotation
• Regular spiral with 2 flutes promotes efficient chip evacuation
• Straight shank fits standard drill chucks and collets without adapters

Compatibility

Designed as a standard screw machine length drill bit suitable for use in drill presses, CNC machining centers, turret lathes, and hand-held power drills equipped with chucks sized to accept a straight shank at 0.1440 inches diameter.

Installation Notes

A licensed machinist or trained metal fabricator should confirm proper chuck engagement and shank seating before operation. Always power down and de-energize the machine spindle before changing bits. Use appropriate cutting fluid or coolant on hard ferrous materials to extend tool life, even though this bit does not support through-coolant delivery. Follow applicable shop safety standards and machine manufacturer guidelines for maximum spindle speed at this bit diameter.