Hertel 74129206 Solid Carbide Die Drill Bit 13/64 Inch

Product Description

The HERTEL 74129206 is a straight-flute solid carbide die drill bit designed for precision drilling in hard and difficult-to-machine materials. Built from C2-grade carbide with a bright finish, it delivers consistent performance in demanding metalworking applications. The bit features a 140-degree notched point with web thinning to reduce thrust and improve chip evacuation at entry. At 0.2031 inches in diameter with a diameter tolerance of +0.0000 to -0.0005 inches, it holds tight dimensional control for die work, jig drilling, and other close-tolerance operations. Machinist and tool and die professionals are the primary users of this bit.

This drill bit is suited for use on chrome alloy, heat-treated alloy, nickel alloy, stainless steel, carbon steel, and titanium alloy workpieces. It is appropriate for both primary and secondary operations on these material families. Typical applications include die making, precision hole production in toolrooms, and close-tolerance through-hole drilling in production environments where carbide is required to maintain edge life and dimensional accuracy.

Key Features

• Solid C2-grade carbide construction for extended tool life in hard metals
• 140-degree notched point reduces walking and improves center accuracy
• Web-thinned geometry lowers thrust and aids chip clearance at drill entry
• Straight-flute design suited for die drilling and short-chip materials
• Bright finish with tight diameter tolerance of +0.0000 to -0.0005 inches
• Right-hand cutting direction, 2-flute configuration

Compatibility

Designed for drilling chrome alloy, heat-treated alloy, nickel alloy, stainless steel, steel, and titanium alloy workpieces in die, toolroom, and production machining applications.

Installation Notes

Installation and use of this drill bit is performed by machinists and tool and die professionals operating drill presses, milling machines, or CNC machining centers. Secure the shank firmly in a compatible chuck or collet rated for the spindle speed appropriate to carbide tooling in the workpiece material. Ensure the machine is powered down and at a full stop before changing or inspecting the bit. Avoid using this bit on materials outside its rated workpiece material list, as misapplication can cause premature edge failure or bit fracture.