Cleveland C04447 Screw Machine Drill Bit Wire 23 Hss

Product Description

The CLEVELAND C04447 is a screw machine length (stub length) drill bit sized to wire gauge No. 23, with a decimal diameter of 0.154 inches. Built from high-speed steel (HSS) with a bright/uncoated finish, this bit runs a standard 118-degree point angle and a right-hand spiral flute configuration. The shortened overall length of 2-1/16 inches gives it added rigidity compared to jobber-length bits, reducing deflection in close-clearance drilling applications. It carries a straight-cylindrical shank of 0.154 inches diameter and meets ASME B94.11M dimensional standards. Machinists, tool and die workers, and maintenance technicians use this bit for general-purpose hole-making in alloy steel and aluminum.

This bit is suited for use in drill presses, CNC machining centers, turret lathes, and hand-held drilling equipment where a short, stiff bit is preferred over standard jobber length. The 1-inch flute length handles typical through-hole and blind-hole depths encountered in light to medium production work. Primary workpiece materials include alloy steels and aluminum, making it a common choice in fabrication shops, machine shops, and maintenance departments. It ships individually but requires a minimum order quantity of 10 pieces.

Key Features

• Wire size No. 23 — 0.154 inches decimal diameter with a tight tolerance of +0.0000 to -0.0007 inches
• Screw machine (stub) length at 2-1/16 inches OAL for added rigidity and reduced deflection
• 118-degree standard point angle with web-thinned geometry for easier penetration
• High-speed steel construction, bright/uncoated finish for general-purpose use
• Right-hand cut, regular spiral with parallel web configuration
• Meets ASME B94.11M standards; Series 2120

Compatibility

Designed as a general-purpose screw machine length drill bit compatible with standard straight-shank chucks on drill presses, lathes, milling machines, and CNC drilling equipment accepting a 0.154-inch straight-cylindrical shank.

Installation Notes

Install in a properly sized chuck or collet and verify runout before production drilling. Secure the workpiece firmly before engaging the bit. Use appropriate cutting fluid when drilling alloy steels to manage heat and extend tool life. Inspect the cutting edges for wear or chipping before each use, as a damaged point can cause oversized holes or workpiece damage.