Hertel 66692310 Jobber Drill Bit 1/16 in 135 Deg Hss

Product Description

The HERTEL 66692310 is a 1/16 inch diameter jobber-length drill bit designed for precision holemaking in metal and general shop applications. Built from heavy-duty high speed steel and finished with a TiAlN (titanium aluminum nitride) coating, it resists heat and wear at elevated cutting speeds. The 135-degree split point reduces thrust, centers the bit without a pilot hole, and improves chip ejection. With an overall length of 1-7/8 inches and a flute length of 7/8 inch, this bit is sized for tight-clearance work. It is used by machinists, maintenance technicians, and metalworking tradespeople who require consistent performance from a small-diameter drill.

The 66692310 is suited for holemaking tasks in light-gauge steel, aluminum, and similar materials where a small, accurate bore is required. The straight-cylindrical shank seats securely in standard keyless or keyed drill chucks. The right-hand spiral flute configuration and tapered web with web-thinned geometry help clear chips efficiently in blind or through-hole applications. This bit is sold individually and is appropriate for bench drill presses, handheld drills, and CNC setups requiring a 0.0625 inch diameter tool.

Key Features

• TiAlN coating extends tool life at higher cutting speeds and temperatures
• 135-degree split point reduces walking and lowers required thrust force
• Web-thinned, tapered web improves chip flow and reduces heat buildup at the tip
• Heavy-duty HSS grade provides durability for repeat use in metalworking applications
• Straight-cylindrical shank fits standard drill chucks without adapters
• Right-hand, regular spiral flute for efficient chip evacuation

Compatibility

Designed as a standard jobber-length drill bit compatible with any drill chuck or collet that accepts a 0.0625 inch straight-cylindrical shank, including bench presses, hand drills, and CNC spindles configured for that shank diameter.

Installation Notes

Secure the shank fully in the chuck before drilling and confirm the bit is centered and running true before engaging the workpiece. Always power down and de-energize the drill press or machine before changing bits. Use appropriate cutting fluid or coolant for the material being drilled to maximize tool life, particularly in ferrous metals. Refer to the machine manufacturer and applicable shop safety standards for recommended speeds and feeds for small-diameter HSS bits.