Cleveland C11665 Jobber Drill Bit 11 Hss 135 Degree

Product Description

The CLEVELAND C11665 is a wire gauge size 11 jobber length drill bit designed for precision hole drilling in metal fabrication and general industrial applications. Built from high speed steel with a bright uncoated finish, this bit features a 135-degree split point that reduces walking and allows drilling to begin without a center punch on most surfaces. The overall length is 3.5 inches with a flute length of 2.3125 inches, making it suited to standard jobber-length chucks and drill presses. Licensed HVAC, plumbing, and mechanical trades as well as machinists and fabricators will find this bit appropriate for everyday production and maintenance drilling tasks.

This bit is rated as a heavy duty grade tool conforming to NAS 907 Type B standards. Its primary workpiece material designation is aluminum, though the 135-degree split point geometry and high speed steel construction make it capable across a range of non-ferrous and ferrous materials encountered in light fabrication and equipment service. The straight-cylindrical shank diameter of 0.1910 inches fits standard three-jaw chucks on handheld drills, drill presses, and CNC turret setups without adapters.

Key Features

• Wire gauge size 11 (0.1910 inches) with a diameter tolerance of -0.0007 to 0.0000 inches for precise hole sizing
• 135-degree split point reduces thrust and minimizes bit walking on entry
• Web-thinned, tapered web construction reduces cutting resistance and improves chip evacuation
• Two regular spiral flutes with a flute length of 2.3125 inches promote steady chip clearing
• Bright uncoated finish maintains sharpness and allows easy visual inspection of the cutting edge
• Meets NAS 907 Type B specification for heavy duty industrial use

Compatibility

Designed as an OEM-style jobber length drill bit suitable for use in standard three-jaw chucks, drill presses, and turret setups accepting a 0.1910-inch straight-cylindrical shank; rated per NAS 907 Type B for industrial drilling applications.

Installation Notes

Secure the shank fully in the chuck before drilling and confirm the bit is centered and running true before engaging the workpiece. A licensed machinist or qualified tradesperson should select appropriate feed rate and spindle speed based on workpiece material to avoid overheating the cutting edge. No coolant-through capability is present on this bit, so external cutting fluid or air cooling is recommended for extended runs in harder materials. Inspect the cutting edge and split point before each use and replace the bit if chipping or dulling is evident.