Cleveland C04437 9/64 in Hss Screw Machine Drill Bit

Product Description

The CLEVELAND C04437 is a screw machine length (stub length) drill bit designed for high-volume drilling operations where rigidity and precision matter. Manufactured from high-speed steel (HSS) with a bright, uncoated finish, this 9/64-inch (0.1406 inches) diameter bit features a 118-degree standard point angle and a right-hand spiral flute configuration. The short overall length of 1-15/16 inches reduces deflection and improves hole accuracy in production and machine shop environments. Web thinning reduces thrust load and improves chip evacuation. Licensed HVAC, plumbing, and electrical tradespeople, as well as machinists and maintenance technicians, use stub-length bits where clearance is limited or a drill press or CNC machine is in use.

This bit is suited for general-purpose drilling in alloy steel, aluminum, and similar materials. The screw machine length format makes it a standard choice for turret lathes, CNC machining centers, and drill presses where a shorter, stiffer bit is preferred over jobber-length alternatives. Its two-flute spiral design and parallel web configuration support consistent chip removal in both light-duty and moderate production runs.

Key Features

• 9/64-inch (0.1406 inches) diameter with a tight tolerance of +0.0000 to -0.0007 inches
• 118-degree standard point angle for general-purpose drilling
• High-speed steel construction for durability across a range of workpiece materials
• Short screw machine length (1-15/16 inches OAL) for improved rigidity and reduced deflection
• Web-thinned parallel web reduces drilling thrust and aids chip evacuation
• Right-hand cut, straight-cylindrical shank fits standard drill chucks and collets
• Meets ASME B94.11M standards for drill bit dimensions and tolerances

Compatibility

Designed as a general-purpose screw machine length drill bit compatible with standard straight-shank drill chucks, collets, and turret lathe tooling sized for a 0.1406-inch shank diameter.

Installation Notes

This bit is installed and removed by qualified machinists or maintenance technicians using a standard keyed or keyless drill chuck appropriate for the shank diameter. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Secure the shank fully in the chuck or collet to prevent runout. Follow applicable workplace safety standards and machine manufacturer guidelines for feeds, speeds, and coolant use when drilling alloy or aluminum workpieces.