Hertel 61698833 Screw Machine Drill Bit 49/64 Hss

Product Description

The HERTEL 61698833 is a screw machine length drill bit designed for general-purpose drilling in metal, wood, and similar materials. Built from high speed steel with an oxide finish, this bit delivers reliable performance in production and job-site environments. The 118-degree standard point angle suits a wide range of common materials without requiring a split-point grind. At 0.7656 inches (49/64 inch) in diameter with a 5-1/8-inch overall length, it fits applications where a shorter-body bit is preferred over a jobber-length counterpart. Machinists, tool-and-die tradespeople, and maintenance mechanics are the primary users. The straight-cylindrical shank seats directly into standard drill chucks without an adapter.

This bit is suited for screw machine work, drill press operations, and handheld drilling where a shorter flute-to-diameter ratio improves rigidity and reduces deflection. The 3xD flute-by-diameter ratio and 3-1/4-inch flute length provide chip clearance while keeping the body stiff under load. The regular spiral and two-flute configuration support efficient chip evacuation in through-hole and blind-hole drilling. It is intended for right-hand rotation and is not designed for use with coolant-through spindles.

Key Features

• 49/64 inch (0.7656 inch) diameter with a 118-degree standard point angle for general-purpose drilling
• High speed steel construction with oxide finish for surface protection and reduced friction
• Screw machine length body (5-1/8 inches overall) provides increased rigidity compared to jobber-length bits
• Straight-cylindrical shank fits standard drill chucks directly
• Two-flute regular spiral design supports efficient chip evacuation
• ANSI specification designation confirms dimensional conformance to industry standards

Compatibility

Designed as a general-purpose replacement or production drill bit for use in standard drill presses, screw machines, and handheld drills equipped with chucks sized for a straight-cylindrical shank at this diameter.

Installation Notes

Installation and use should be performed by a qualified machinist or trained tradesperson familiar with rotating cutting tools. Secure the shank fully in the drill chuck and verify concentricity before operation. Always wear appropriate eye protection and ensure the workpiece is properly fixtured before beginning a cut. Do not exceed the recommended feed and speed parameters for the workpiece material and tool diameter.