Hertel 85707321 Jobber Drill Bit Wire 10 0.1935 in Hss Tin

Product Description

The HERTEL 85707321 is a jobber-length twist drill bit sized to wire gauge 10 (0.1935 inches decimal), designed for general-purpose drilling in metal, plastic, and similar materials. It is manufactured from high speed steel (HSS) with a titanium nitride (TiN) coating that reduces friction and extends cutting life compared to uncoated HSS. The bit features a 118-degree standard point angle, a regular spiral flute, and a web-thinned, tapered web configuration for improved chip evacuation and reduced thrust. Overall length is 3.625 inches with a flute length of 2.4375 inches. The straight-cylindrical shank seats directly in standard drill chucks. This bit is sold individually and suited for installation by machinists, HVAC technicians, plumbers, electricians, and general trade professionals.

The HERTEL 85707321 fits general-purpose drilling applications in light manufacturing, field service, and maintenance work. It is appropriate for use in hand-held drills and drill presses where a wire-size 10 hole is required. The 0.1935-inch diameter falls within the 0.1500 to 0.2000 inch drill bit size range, making it a standard selection for tapping and clearance-hole operations common across mechanical and electrical trades.

Key Features

• Wire gauge 10 size at 0.1935 inches decimal diameter for precise hole sizing
• High speed steel construction with TiN coating for extended cutting life
• 118-degree standard point angle with web-thinned, tapered web for reduced thrust
• Regular spiral flute with right-hand cut for efficient chip removal
• Straight-cylindrical shank fits standard 3-jaw and keyless drill chucks
• Jobber-length at 3.625 inches OAL balances rigidity and reach for general use

Compatibility

Designed as a general-purpose jobber-length drill bit compatible with any standard drill chuck accepting a 0.1935-inch straight-cylindrical shank, including hand-held electric drills, cordless drills, and drill presses.

Installation Notes

This bit should be installed by securing the straight shank firmly in the chuck before drilling. Ensure the workpiece is clamped or secured to prevent movement during the cut. Use appropriate cutting fluid when drilling ferrous metals to reduce heat buildup and extend bit life. Replace the bit if tip geometry shows signs of wear, as a dull point increases thrust and can cause workpiece damage or bit breakage.