Hertel 16705055 Screw Machine Drill Bit No 38 Solid Carbide

Product Description

The HERTEL 16705055 is a screw machine length drill bit ground from solid carbide and designed for demanding hole-making in hard and abrasive materials. The shortened screw machine length body provides added rigidity over jobber-length bits, reducing deflection and improving positional accuracy in production environments. The 135-degree split point geometry starts on contact without a center punch and helps minimize thrust force at entry. With a bright uncoated finish and a straight cylindrical shank, this bit is sized at wire gauge No. 38, equivalent to 0.1015 inches decimal, and measures 1-13/16 inches overall length.

This drill bit is suited for shops and field technicians working with cast iron, nickel alloy, stainless steel, titanium alloy, and tool steel. The slow spiral flute geometry is intentionally selected for these hard and work-hardening materials, promoting chip evacuation without excessive heat buildup. The two-flute design with a right-hand cut is standard for CNC machining centers, drill presses, and hand-held pneumatic drills used in industrial maintenance and manufacturing environments.

Key Features

• Solid carbide construction for hardness and wear resistance in difficult alloys
• 135-degree split point starts on contact and reduces walking without a center punch
• Slow spiral flute geometry optimized for cast iron, stainless steel, titanium alloy, and nickel alloy
• Screw machine length body increases rigidity and reduces deflection compared to jobber-length bits
• Bright uncoated finish suitable for applications where coating compatibility is a concern
• Straight cylindrical shank fits standard drill chucks without adapters

Compatibility

Designed as an OEM-style replacement screw machine length drill bit for applications requiring a No. 38 wire gauge size hole in hard ferrous and non-ferrous alloys.

Installation Notes

Installation and use of solid carbide tooling should be performed by qualified machinists or maintenance technicians familiar with cutting tool practices. Secure the workpiece fully before drilling to prevent movement that can chip the carbide cutting edge. Solid carbide is brittle relative to high-speed steel and is sensitive to side loading and interrupted cuts without proper fixturing. Always verify spindle speed and feed rate are appropriate for the workpiece material before engaging the cut.