Hertel 61698668 Screw Machine Drill Bit 11/64 Hss

Product Description

The HERTEL 61698668 is a screw machine length drill bit designed for high-speed steel cutting in metal, wood, and general-purpose materials. Built to ANSI specifications, this bit features a 118-degree standard point angle and a right-hand spiral flute configuration that promotes efficient chip evacuation during drilling. At 11/64 inch (0.1719 inch) in diameter, it suits tight-clearance drilling applications where a standard-length bit would be impractical. The straight-cylindrical shank provides secure clamping in drill chucks and collets. Licensed trades and machinists working in production or maintenance environments reach for screw machine length bits when clearance is limited and rigidity is a priority.

This bit is suited for use in drill presses, CNC machining centers, and hand-held power drills in both shop and field environments. The shorter overall length of 2-1/8 inches compared to jobber-length bits reduces deflection and improves hole accuracy in metal fabrication, HVAC bracket work, plumbing rough-in, and electrical panel assembly tasks. The oxide finish provides a basic level of surface hardness and lubricity appropriate for general-purpose cutting without coolant.

Key Features

• 11/64 inch (0.1719 inch) diameter — ANSI specification compliant
• 118-degree standard point angle for general-purpose material entry
• High speed steel construction for durability across common workpiece materials
• Screw machine length (2-1/8 inch overall) reduces deflection in tight clearances
• Right-hand cut, regular spiral, 2-flute design promotes chip clearing
• Oxide finish improves surface lubricity without coolant-through requirement
• Straight-cylindrical shank fits standard drill chucks and collets

Compatibility

Designed as a general-purpose replacement or stock bit compatible with any drill press, hand-held power drill, or CNC spindle accepting a straight-cylindrical shank in the 11/64 inch diameter range.

Installation Notes

Installation and use of this bit should be performed by qualified machinists or trade professionals familiar with drilling operations. Always ensure the drill chuck or collet is fully secured and the workpiece is clamped before engaging the spindle. Verify drill speed (RPM) is appropriate for the workpiece material and bit diameter per standard machining references. Inspect the cutting edges before each use and replace the bit if chipping or excessive wear is observed.