Hertel 61699146 Screw Machine Drill Bit 0.18 in Hss

Product Description

The HERTEL 61699146 is a screw machine length drill bit designed for general-purpose metal drilling in production and maintenance environments. Built from high speed steel with an oxide finish, this bit runs at standard cutting speeds and handles a wide range of ferrous and non-ferrous materials. It features a 118-degree standard point angle, a right-hand spiral flute configuration, and a straight-cylindrical shank for secure chuck retention. At 0.18 inches in diameter (wire gauge size 15), it suits precision hole-making where a shorter, more rigid bit is preferred over jobber-length alternatives. Machinists, tool-and-die techs, and maintenance mechanics are the typical users.

Screw machine length drill bits are used wherever rigidity and accuracy matter more than deep reach. The shorter flute length reduces deflection, making this bit well-suited for drill presses, CNC turret lathes, screw machines, and bench-mounted production setups. It performs reliably in light to medium-duty applications on steel, aluminum, brass, and similar materials. This bit is sold individually and is available in minimum order quantities consistent with production shop purchasing.

Key Features

• High speed steel construction with oxide finish for general-purpose durability
• 118-degree standard point angle for broad material compatibility
• Right-hand cut with regular spiral flute for efficient chip evacuation
• Screw machine length body reduces deflection compared to jobber-length bits
• Straight-cylindrical shank fits standard drill chucks and collets
• Wire gauge size 15 (0.18 inches) for precision hole sizing

Compatibility

Designed as a general-purpose screw machine length drill bit compatible with standard drill chucks and collets accepting a straight-cylindrical shank in the 0.15 to 0.20 inch diameter range per ANSI specification.

Installation Notes

Installation and use of this drill bit is performed by machinists and maintenance mechanics operating drill presses, lathes, or handheld power tools. Secure the shank fully in the chuck or collet before operation and confirm the workpiece is clamped or fixtured to prevent movement. Use appropriate cutting fluid for the material being drilled to extend bit life. Inspect the cutting edges for wear or chipping before each use and replace the bit if the point shows damage.