Cleveland C11674 Jobber Drill Bit Wire 20 Hss 135 Degree

Product Description

The CLEVELAND C11674 is a jobber-length twist drill bit designed for precision hole-making in metal and non-ferrous materials. Manufactured from high speed steel with a bright, uncoated finish, this bit features a 135-degree split point that reduces walking on contact and lowers thrust requirements compared to conventional 118-degree points. The wire gauge size 20 corresponds to a decimal diameter of 0.1610 inches. With a straight-cylindrical shank and regular spiral fluting, it is compatible with standard three-jaw drill chucks. Licensed HVAC technicians, plumbers, electricians, and mechanical contractors routinely reach for bits in this size range for sheet metal, bracket, and strut work.

This drill bit is suited for light to heavy-duty production drilling in aluminum, sheet metal, and similar workpiece materials. The Series 2222 designation and NAS 907 Type B standard make it appropriate for aerospace-influenced and precision industrial applications. The 2-1/8-inch flute length provides adequate chip clearance for the depth of cut typical in trade service and fabrication work. It is sold individually with a minimum order quantity of 12 units, making it practical for stocking in a shop or service van.

Key Features

• 135-degree split point reduces thrust and eliminates the need for a center punch on most metal surfaces
• High speed steel construction handles standard drilling speeds in aluminum and ferrous sheet stock
• Bright, uncoated finish allows easy visual inspection for wear and regrinding
• Web-thinned tapered web improves cutting efficiency and chip evacuation
• Straight-cylindrical shank fits standard keyed and keyless drill chucks without adapters
• Meets NAS 907 Type B specification for dimensional and material consistency

Compatibility

Designed as an OEM-style jobber drill bit replacement for any application requiring a wire gauge size 20 (0.1610-inch) straight-shank twist drill. Primary workpiece material rating is aluminum; suitable for general non-ferrous and light ferrous drilling where a 135-degree split point geometry is specified.

Installation Notes

Install the shank fully into the drill chuck and tighten securely before operation. Power down the drill press or verify the cordless tool is unchucked before changing bits. Use appropriate cutting fluid or lubricant when drilling ferrous materials to extend tool life, even though the bright finish carries no built-in lubrication coating. Wear eye protection and secure the workpiece per applicable shop safety standards before drilling.