Cleveland C04683 Screw Machine Drill Bit 1-1/8 in Hss

Product Description

The CLEVELAND C04683 is a screw machine length drill bit designed for high-production drilling in metal fabrication, machining, and maintenance applications. Built from high-speed steel with a bright uncoated finish, this 1-1/8 inch diameter bit features a 118-degree standard point angle and a right-hand spiral flute configuration. The shorter overall length of 6-3/8 inches provides increased rigidity over jobber-length bits, reducing deflection during drilling in tough materials. Two spiral flutes channel chips efficiently away from the cutting zone. The straight cylindrical shank measures 1.0000 inch in diameter and is compatible with standard drill chucks and tool holders.

This bit is suited for general-purpose drilling in alloy steels and aluminum in shop, field, or production environments. The screw machine length profile is a common choice for CNC drilling operations, drill press work, and manual machining where a stub-length bit improves stability in deeper setups. The C04683 is sold individually and conforms to ASME B94.11M and ANSI specification standards, making it appropriate for applications requiring documented tooling compliance.

Key Features

• 1-1/8 inch diameter with a tolerance of +0.0000 to -0.0015 inches for precise fit
• 118-degree standard point angle for general-purpose entry into alloy and aluminum workpieces
• High-speed steel construction provides heat resistance during extended drilling cycles
• Screw machine (stub) length at 6-3/8 inches overall improves rigidity and reduces runout
• Two right-hand spiral flutes with 4-inch flute length for effective chip evacuation
• Straight cylindrical shank fits standard drill chucks without adapters
• Bright uncoated finish — suitable for use with cutting fluids on ferrous and non-ferrous materials

Compatibility

Designed for general-purpose drilling in alloy steels and aluminum. Fits standard drill chucks and tool holders accepting a 1.0000-inch straight cylindrical shank. Part of the Cleveland Series 2120 screw machine length drill line.

Installation Notes

Installation and use should be performed by machinists or qualified tradespeople familiar with drill press, lathe, or CNC spindle operation. Secure the shank fully in the chuck or collet before operation and verify runout before beginning a cut. Apply an 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 and discontinue use if the point shows damage.