Cleveland C14802 Screw Machine Drill Bit 3.3mm Cobalt

Product Description

The CLEVELAND C14802 is a cobalt screw machine length drill bit designed for high-speed, close-tolerance drilling in metal fabrication and machining applications. At 3.3 mm (0.1299 inches) in diameter with a 135-degree split point, this bit starts precisely without center punching and reduces thrust load during entry. The overall length of 49 mm (1.93 inches) and shortened flute length make it well-suited for rigid setups where minimizing deflection matters. Built from M42 cobalt high-speed steel, it carries a heavy-duty grade rating and conforms to ASME B94.11M and DIN 1897 standards. Licensed machinists and tool-and-die professionals are the primary users.

This bit is intended for drilling alloy steels and aluminum in production machining environments where screw machine length geometry is specified. The compact body reduces runout on CNC lathes, turret mills, and screw machines. Two spiral flutes with web thinning and a parallel web configuration promote efficient chip evacuation even in interrupted cuts. The right-hand cut, straight-cylindrical shank fits standard chucks without adapters and accepts the full 0.1299-inch shank diameter. It is a single-piece, individually packaged bit sold one unit per package.

Key Features

• M42 cobalt construction for extended tool life in alloy steel and aluminum
• 135-degree split point for self-centering entry and reduced thrust
• Web-thinned parallel web for improved chip flow and lower feed force
• Screw machine length body (49 mm OAL) minimizes deflection in rigid setups
• Diameter tolerance of +0.0000 to -0.0007 inches for close-fit hole requirements
• Conforms to ASME B94.11M and DIN 1897 specifications

Compatibility

Designed as an OEM-style replacement or standard tooling selection for screw machines, CNC lathes, and turret mills that accept straight-cylindrical shank drill bits in the 0.1299-inch diameter class. Primary workpiece materials are alloy steels and aluminum as specified by the manufacturer.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Secure the shank fully in a compatible drill chuck or collet and verify runout before beginning a production run. Power down and lock out the machine before changing tooling. Do not use this bit without proper chip clearance and workpiece fixturing, as screw machine length bits are optimized for supported, rigid applications.