Cleveland C14628 Cobalt Screw Machine Drill Bit Size 3

Product Description

The CLEVELAND C14628 is a cobalt screw machine length drill bit designed for high-performance drilling in demanding industrial and metalworking applications. Built from M42 cobalt high-speed steel, it handles elevated cutting temperatures that would degrade standard HSS tooling. The bit measures 2.375 inches overall length with a 1.25-inch flute length, and features a 135-degree split point that reduces walking and cutting force on entry. A web-thinned, parallel web design supports consistent chip evacuation. This is a heavy-duty grade tool suited for machinists, tool-and-die shops, and production environments where bit longevity and dimensional accuracy matter.

The C14628 is sized at wire gauge number 3, equivalent to 0.2130 inches in diameter, and conforms to ASME B94.11M and DIN 1897 standards. Its short screw machine length profile makes it well suited for drill presses, CNC machining centers, and turret lathes where reduced overhang improves rigidity. It is rated for drilling alloy steels and aluminum, making it a practical choice for fabrication shops and production machinists working with harder or more abrasive materials.

Key Features

• M42 cobalt construction handles heat buildup in hard and abrasive materials
• 135-degree split point reduces drill walk and lowers required feed force
• Web-thinned parallel web promotes efficient chip evacuation and reduces torque
• Screw machine length (2.375 inches OAL) provides added rigidity over jobber-length bits
• Right-hand cut with straight cylindrical shank fits standard drill chucks without adapters
• Diameter tolerance held to +0.0000 to -0.0007 inches for precise hole sizing

Compatibility

Designed as an OEM-style replacement or direct-use drill bit for standard straight-shank drill chucks and collet holders accepting a 0.2130-inch shank diameter. Suitable for use in drill presses, CNC lathes, turret mills, and hand-held pneumatic or electric drill equipment configured for screw machine length tooling.

Installation Notes

Installation and use should be performed by qualified machinists or tooling technicians familiar with proper speeds and feeds for cobalt drill bits. Secure the shank fully in the chuck or collet before operation and verify runout is within acceptable limits for the application. Always power down and de-energize the machine spindle before changing or inspecting tooling. Do not exceed the recommended cutting parameters for the workpiece material, as overfeeding cobalt bits in hard alloys can cause tip fracture.