Cleveland C14811 Screw Machine Drill Bit 7.4mm Cobalt

Product Description

The CLEVELAND C14811 is a cobalt screw machine length drill bit designed for high-performance drilling in demanding industrial and trade applications. Built to Series 2133 standards, this bit features a 7.4 mm (0.2913 inch) diameter, a 135-degree split point for fast, accurate starts with minimal walking, and a web-thinned construction that reduces thrust and improves chip evacuation. The heavy-duty M42 cobalt material grade delivers heat resistance and edge retention when cutting through tough workpiece materials. It is sold individually and suited for use by machinists, maintenance technicians, and metalworking professionals.

This drill bit is rated for use in alloy steels and aluminum, making it a practical choice for fabrication shops, maintenance and repair operations, and production environments where shorter overall length provides better rigidity in confined setups. The screw machine length profile is shorter than jobber-length bits, reducing deflection and increasing precision in drill press, CNC, and hand-held power tool applications. The straight-cylindrical shank fits standard drill chucks without adapters.

Key Features

• M42 cobalt material grade for heat resistance and extended tool life in hard metals
• 135-degree split point reduces walking and lowers required entry thrust
• Web-thinned, parallel web construction improves chip flow and reduces heat buildup
• Screw machine length (74 mm OAL) provides increased rigidity over jobber-length bits
• Right-hand cut with regular spiral fluting for standard drilling operations
• Meets ASME B94.11M and DIN 1897 standards

Compatibility

Designed as an OEM-style replacement or direct-use screw machine drill bit for applications requiring a 7.4 mm diameter hole in alloy steel or aluminum workpieces, compatible with any standard drill chuck accepting a 0.2913-inch straight-cylindrical shank.

Installation Notes

Installation and use should be performed by qualified machinists or trade professionals familiar with metalworking safety practices. Always secure the workpiece before drilling and set spindle speed appropriate to the workpiece material and bit diameter. Inspect the cutting edges before each use and replace if chipping or excessive wear is present. No coolant-through capability is available on this bit, so apply cutting fluid externally when drilling harder alloys to manage heat.