Cleveland C11622 25/64 Inch Hss Jobber Drill Bit 135 Deg

Product Description

The CLEVELAND C11622 is a jobber-length twist drill bit designed for precision hole-making in metal and non-ferrous materials. Built from high speed steel with a bright uncoated finish, it features a 135-degree split point that reduces walking and requires less feed force at entry. The bit measures 25/64 inch (0.3906 inch) in diameter with a 5.125-inch overall length and a 3.75-inch flute length. The two-spiral flutes clear chips efficiently during right-hand cutting operations. Diameter tolerance is held to -0.0010 to 0.0000 inch, meeting NAS 907 Type B standards. This is a heavy-duty grade tool suited for production and maintenance work by machinists, HVAC technicians, and general trade professionals.

The C11622 is rated for primary use in aluminum and is well-suited to light-gauge steel, plastics, and other non-ferrous materials encountered in HVAC, plumbing, and electrical rough-in work. The straight-cylindrical shank seats in standard 3-jaw chucks on both corded and cordless drills and drill presses. The regular spiral and tapered web configuration with web thinning make it a reliable choice for production drilling where consistent hole quality is required across repeated use.

Key Features

• 135-degree split point reduces bit walking and lowers required feed pressure
• High speed steel construction with bright uncoated finish for general-purpose cutting
• Web-thinned tapered web improves cutting efficiency and reduces thrust
• Right-hand cut with regular spiral flutes for efficient chip evacuation
• Diameter tolerance -0.0010 to 0.0000 inch meets NAS 907 Type B specification
• Straight-cylindrical shank fits standard 3-jaw chucks without adapters

Compatibility

Designed as a jobber-length replacement or production drill bit for use in standard 3-jaw drill chucks and drill press spindles accepting straight-cylindrical shanks up to 25/64 inch diameter.

Installation Notes

Secure the shank fully in the chuck and verify concentricity before drilling. Use cutting fluid or lubricant when drilling aluminum or ferrous materials to extend tool life and improve hole finish. Operate at speeds appropriate for the workpiece material and bit diameter per standard machining tables. Inspect the cutting edges and split point for wear before each use and redress or replace the bit when edge degradation is observed.