Cleveland C14585 No. 25 Cobalt Screw Machine Drill Bit

Product Description

The CLEVELAND C14585 is a screw machine length (stub-length) drill bit designed for high-production drilling in metal fabrication, maintenance, and machining applications. Built from M42 cobalt high-speed steel, it handles heat and work hardening better than standard HSS bits, making it well suited for tough alloy steels and aluminum. The bit features a 135-degree split point that self-centers on contact and reduces the thrust needed to start a hole. At 2-1/16 inches overall length with a 1-inch flute length, the stub format provides added rigidity and reduced deflection compared to jobber-length bits. Diameter is 0.1495 inch (No. 25 wire size) with a diameter tolerance of plus 0.0000 to minus 0.0007 inch.

This bit is intended for use in screw machines, CNC lathes, drill presses, and handheld power drills where stub-length stiffness is required. Primary workpiece materials are alloy steel and aluminum, though the cobalt construction extends usable life on stainless and other abrasion-resistant materials. The straight-cylindrical shank fits standard drill chucks without an adapter. It is sold individually and is appropriate for machinists, tool-and-die professionals, and industrial maintenance technicians who need a reliable, dimensionally consistent bit for repetitive hole-making operations.

Key Features

• M42 cobalt steel construction resists heat buildup and maintains edge integrity in tough alloy and abrasion-resistant materials
• 135-degree split point self-centers and reduces thrust, eliminating the need for a center punch on most metal surfaces
• Stub screw machine length provides greater rigidity and reduced deflection versus jobber-length bits
• Web-thinned parallel web configuration lowers cutting resistance and improves chip evacuation
• Regular spiral with 2 flutes suits a wide range of metalworking operations on alloy steels and aluminum
• Meets ASME B94.11M and DIN 1897 dimensional standards for dimensional consistency and interchangeability

Compatibility

Designed as an OEM-style replacement or direct-use screw machine drill bit compatible with any standard drill chuck accepting a 0.1495-inch straight-cylindrical shank.

Installation Notes

Installation is performed by machinists or industrial maintenance technicians using any drill chuck rated for the 0.1495-inch straight-cylindrical shank diameter. Ensure the machine spindle is fully stopped and the chuck is tightened securely before beginning any drilling operation. Appropriate cutting fluid or coolant is recommended when drilling alloy steel to extend tool life, even though this bit does not support coolant-through delivery. Follow shop safety practices and applicable OSHA machine-guarding requirements when operating drill presses or screw machines.