Hertel 74132044 Drill Bit Size 6 Cobalt Tialn 135 Deg

Product Description

The HERTEL 74132044 is a screw machine length drill bit designed for high-production metal cutting applications. Built from cobalt high-speed steel and coated with TiAlN (titanium aluminum nitride), this bit handles hard ferrous metals, stainless steel, and heat-resistant alloys where standard HSS tooling falls short. The 135-degree split point geometry reduces thrust force and self-centers on entry without a pilot hole. The web-thinned, parallel-web configuration further reduces cutting resistance. At 2.375 inches overall length and a 0.2040-inch diameter (wire size 6), it is sized for screw machine work and short-reach drilling operations requiring precise hole placement.

This bit is suited for use in CNC screw machines, turret lathes, drill presses, and hand-held power drills where stub-length rigidity is needed. The short overall length minimizes deflection in high-cycle production environments. Machinists, tool-and-die technicians, and maintenance mechanics working with stainless, alloy steel, cast iron, and titanium will find the cobalt substrate and TiAlN coating effective at elevated cutting temperatures. The straight-cylindrical shank fits standard drill chucks and collet holders without modification.

Key Features

• Cobalt construction resists heat buildup when drilling hard and abrasive metals
• TiAlN coating extends tool life and improves wear resistance at high surface speeds
• 135-degree split point reduces entry thrust and eliminates center-punch requirements
• Web-thinned parallel-web design lowers cutting resistance and improves chip evacuation
• Screw machine length (2.375 inches OAL) provides added rigidity and reduces deflection
• Right-hand spiral flute clears chips efficiently in standard clockwise rotation setups

Compatibility

Designed as a screw machine length drill bit for use in standard drill chucks and collet holders accepting a straight-cylindrical shank in the 0.2000 to 0.2500 inch diameter range.

Installation Notes

Installation is performed by machinists or maintenance technicians using standard chuck or collet toolholding equipment. Ensure the machine spindle is fully stopped and power is locked out before inserting or removing the bit. Secure the shank completely within the chuck or collet to the full grip depth to prevent pullout under load. Do not use coolant-through fixtures with this bit, as it is not rated for through-coolant delivery.