Hertel 83246637 Straight-flute Drill Bit Wire 4 Carbide

Product Description

The HERTEL 83246637 is a straight-flute solid carbide drill bit in Wire Size 4, with a decimal diameter of 0.2090 inches. It features a 140-degree notched point with web thinning for reduced thrust and cleaner entry. The C2 carbide grade provides hardness and wear resistance suited to demanding materials. This bit runs with right-hand cutting direction, has two flutes, and carries a bright/uncoated finish. It is engineered for production drilling in machining centers, CNC setups, and manual drill presses where tight tolerances and material hardness require a solid carbide tool over high-speed steel alternatives.

This drill bit is designed for use in ferrous and high-alloy materials including stainless steel, chrome alloy, heat-treated alloy, nickel alloy, plain steel, and titanium alloy. Its web-thinned geometry reduces the force needed to penetrate tough work materials, making it a practical choice in aerospace, defense, energy, and precision-manufacturing applications. The 0.2090-inch diameter is equivalent to a Wire Size 4 drill, a common sizing specification in tooling layouts for precision bore work. Diameter tolerance is held to plus 0.0000 and minus 0.0005 inches for consistent, repeatable hole sizing.

Key Features

• Solid carbide C2 grade construction for hardness and extended tool life in ferrous and alloy materials
• 140-degree notched point geometry reduces walking and improves centering on entry
• Web-thinned design lowers axial thrust and cutting force in hard or work-hardening materials
• Bright/uncoated finish suitable for use with standard cutting fluids and coolants
• Right-hand cut, two-flute configuration for standard drill press and CNC spindle setups
• Diameter tolerance of plus 0.0000 to minus 0.0005 inches supports close-tolerance bore applications

Compatibility

Designed for drilling chrome alloy, heat-treated alloy, nickel alloy, stainless steel, plain steel, and titanium alloy workpieces. Compatible with standard straight-shank drill chucks and collet holders accepting a 0.2090-inch shank diameter. Suitable for use in CNC machining centers, drill presses, and manual machines configured for solid carbide tooling.

Installation Notes

Solid carbide drill bits should be installed by a qualified machinist or toolroom technician. Verify chuck or collet runout before seating the bit, as excessive runout accelerates carbide breakage. Always bring spindle speed and feed rate within the range recommended for carbide tooling in the specific workpiece material before engaging the cut. Do not use this bit in handheld drilling applications, as carbide is brittle and susceptible to fracture under lateral loading.