Hertel 89320899 Screw Machine Drill Bit Size 46 Hss

Product Description

The HERTEL 89320899 is a screw machine length drill bit designed for general-purpose drilling in metal, plastic, and similar materials. Built from high-speed steel (HSS) with a bright, uncoated finish, it carries a standard 118-degree point angle suited for a wide range of workpiece materials. The overall length of 1.75 inches and shortened flute length of 0.75 inches make this a stub-style bit, providing added rigidity and reduced deflection compared to jobber-length equivalents. Wire gauge size 46 corresponds to a decimal diameter of 0.0810 inches. Right-hand cutting direction is standard for conventional drill press and hand-drill operation. This bit is used by machinists, maintenance technicians, and trade professionals requiring precise small-diameter holes.

Screw machine length bits are common in production machining, sheet metal work, and light fabrication where a shorter, stiffer tool reduces chatter and improves hole accuracy in thin or layered stock. The 0.0810-inch diameter suits tapping pilot holes for fine machine screws and small fastener clearance applications. The straight shank fits standard drill chucks and collets across drill presses, CNC machines, and hand drills. General-purpose grade makes this suitable for intermittent use across common workpiece materials encountered in HVAC, electrical, and plumbing rough-in and equipment installation work.

Key Features

• Wire gauge size 46, decimal diameter 0.0810 inches for consistent sizing across applications
• 118-degree standard point angle for general-purpose material entry without special grinding
• High-speed steel construction provides adequate hardness for metals and plastics
• Screw machine length at 1.75 inches overall delivers increased rigidity over jobber-length bits
• Bright, uncoated finish — no coating to chip or flake in light-duty use
• Right-hand cut, 2-flute regular spiral for standard chip evacuation

Compatibility

Designed as a general-purpose screw machine length drill bit compatible with any standard drill chuck or collet accepting a straight shank at the 0.0810-inch diameter range.

Installation Notes

Install and remove this bit only with the drill or drill press powered down and the chuck fully secured. Use appropriate speeds for small-diameter HSS bits in the material being drilled — excessive speed or feed pressure on bits of this diameter can cause breakage. Always center-punch the workpiece before drilling to prevent walking. Handle small-diameter bits carefully to avoid bending the shank, which will cause runout and premature failure.