Hertel 66692575 Jobber Drill Bit 15/32 Inch Hss Tialn

Product Description

The HERTEL 66692575 is a high speed steel jobber-length drill bit with a TiAlN coating, designed for holemaking in metal and general-purpose shop applications. It measures 15/32 inch (0.4688 inch) in diameter with a 5-3/4 inch overall length and a 4-5/16 inch flute length. The 135-degree split point reduces walking on entry and requires less thrust than a standard 118-degree point. The TiAlN coating improves heat resistance and extends tool life in ferrous and abrasive materials. This is a right-hand cutting, spiral-flute bit with a straight cylindrical shank and tapered web configuration. It carries a heavy-duty grade rating and a NAS specification designation.

This drill bit is suited for production and maintenance drilling in steel, cast iron, and similar materials. The straight cylindrical shank fits standard drill chucks across a wide range of drill presses, lathes, and hand-held power drills. The jobber-length series provides a balanced combination of reach and rigidity for general through-hole and blind-hole work. Machinists, tool and die workers, maintenance technicians, and fabricators commonly reach for this diameter range for structural and mechanical assembly applications.

Key Features

• 15/32 inch (0.4688 inch) diameter with straight cylindrical shank for universal chuck compatibility
• 135-degree split point reduces entry walking and lowers feed force requirements
• TiAlN coating increases surface hardness and heat resistance for longer tool life in ferrous materials
• Web-thinned, tapered web construction improves chip evacuation and reduces thrust
• Right-hand spiral flute with regular helix for efficient chip clearing
• Heavy-duty grade with NAS specification designation

Compatibility

Designed as a standard jobber-length drill bit for use in any drill press, CNC machine, lathe tailstock, or handheld power tool equipped with a chuck that accepts a 0.4688 inch straight cylindrical shank.

Installation Notes

Installation and use should be performed by qualified machinists or trained technicians familiar with rotating cutting tools. Secure the shank fully in the chuck and verify runout before drilling. Always power down and de-energize the machine before changing bits. Use appropriate cutting fluid or coolant for the workpiece material to supplement the TiAlN coating and maximize tool life, noting that coolant-through is not available on this bit.