Cleveland C14702 3/8 Inch Cobalt Screw Machine Drill Bit

Product Description

The CLEVELAND C14702 is a screw machine length drill bit designed for fast, accurate drilling in alloy steels, aluminum, and other demanding workpiece materials. Built from M42 cobalt high-speed steel, it delivers superior heat resistance during high-speed or interrupted-cut operations. The 135-degree split point geometry reduces walking on entry and requires no center punch on most surfaces. At 3.125 inches overall length with a 1.8125-inch flute length, this stub-length bit provides added rigidity compared to jobber-length equivalents, making it well suited for close-tolerance production drilling on CNC machines, drill presses, and manual lathes.

The C14702 fits standard drilling applications across metalworking trades, toolrooms, and maintenance operations. Its straight cylindrical shank diameter of 0.3750 inches seats directly in drill chucks and collet holders without adapters. The screw machine length format is the preferred choice when drill press quill depth is limited or when workpiece fixturing demands a shorter tool overhang. Primary workpiece materials listed include alloy steels and aluminum. The 2-flute regular spiral configuration provides efficient chip evacuation in through-hole and blind-hole applications.

Key Features

• M42 cobalt construction resists heat buildup in hard alloys and stainless-adjacent materials
• 135-degree split point reduces thrust force and eliminates walking without center punching
• Screw machine (stub) length adds rigidity and reduces deflection in tight setups
• Web-thinned parallel web configuration improves cutting efficiency and chip clearance
• Diameter tolerance held to +0.0000 to -0.0010 inches for close-fit hole applications
• Conforms to ASME B94.11M and DIN 1897 standards for dimensional consistency

Compatibility

Designed for use in standard 3/8-inch drill chucks, collet holders, and keyless chucks on drill presses, CNC machining centers, and manual mills or lathes. Suitable for drilling alloy steels and aluminum per Series 2133 application guidelines.

Installation Notes

Installation and use should be performed by a qualified machinist or toolroom technician familiar with cutting tool safety. Ensure the drill chuck or collet is fully tightened and the workpiece is securely fixtured before beginning operation. Power down and de-energize the spindle before changing tooling. Do not exceed the recommended speeds and feeds for the workpiece material and bit diameter.