Hertel 16705071 Screw Machine Drill Bit Wire 36 Solid Carbide

Product Description

The HERTEL 16705071 is a screw machine length drill bit ground from solid carbide and designed for high-performance drilling in hard and difficult-to-machine materials. The bit is sized to wire gauge number 36, with a decimal equivalent of 0.1065 inches in diameter. It features a 135-degree split-point geometry that reduces walking on entry and lowers thrust force at the start of the cut. The slow spiral flute design supports chip evacuation in materials that produce fine, stringy chips. At 1-13/16 inches overall length, this stub-length format provides added rigidity compared to jobber-length bits, making it a practical choice where chatter or deflection is a concern.

This drill bit is suited for use in CNC machining centers, drill presses, and manual drilling operations where tight tolerances and consistent hole quality are required. Its solid carbide construction and bright uncoated finish make it appropriate for dry or light-lubrication drilling in cast iron, nickel alloys, stainless steel, titanium alloys, and tool steel. The straight cylindrical shank allows it to seat in standard drill chucks and collet holders compatible with its shank diameter.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard materials
• 135-degree point angle reduces thrust and minimizes walking at entry
• Slow spiral flutes support chip control in cast iron, stainless, titanium, and nickel alloys
• Bright uncoated finish suitable for dry or minimally lubricated drilling applications
• Screw machine (stub) length adds stiffness and reduces deflection in tight setups
• Straight cylindrical shank fits standard drill chucks and collet holders

Compatibility

Designed as a direct-fit replacement screw machine length drill bit for use in any drill chuck or collet system accommodating a straight cylindrical shank at 0.1065 inches diameter. Intended for machining cast iron, nickel alloy, stainless steel, titanium alloy, and tool steel workpieces.

Installation Notes

Installation and use should be performed by a qualified machinist or tooling technician. Ensure the machine spindle is fully stopped and locked out before changing or seating the bit in the chuck or collet. Verify the shank is fully seated and the chuck or collet nut is torqued to the equipment manufacturer's specification before beginning a cut. Solid carbide tooling is brittle and should not be subjected to side loading, interrupted cuts beyond its rated application, or impacts that could cause chipping or fracture.