Precision Twist Drill 6000357 Jobber Drill Bit 0.42mm Hss

Product Description

The PRECISION TWIST DRILL 6000357 is a jobber-length twist drill bit designed for general-purpose drilling in metalworking applications. Built from high-speed steel (HSS) with a bright, uncoated finish, it features a 118-degree standard point angle and a web-thinned, tapered web construction that reduces entry force and centering effort. The 0.42 mm diameter (0.0165 decimal inch) straight-cylindrical shank fits standard drill chucks without adapters. With a 20 mm overall length and a 5 mm flute length, this is a compact bit suited for precision work in tight-tolerance or small-feature drilling. It conforms to DIN 338 and ANSI standards and carries a Series 2A designation.

This drill bit is rated for use in steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and other hard materials. It is a right-hand cut, two-flute spiral bit with a regular spiral type, making it a standard selection for production drilling and maintenance work. The 12xD flute-to-diameter ratio supports chip evacuation in shallow drilling operations. Machinists, tool-and-die technicians, and maintenance professionals working with handheld or bench-mounted drilling equipment will find this bit suited to fine-hole applications where size accuracy and clean entry are priorities.

Key Features

• 0.42 mm (0.0165 inch) diameter with h8 diameter tolerance for close-fit hole applications
• 118-degree standard point angle with web-thinned, tapered web for reduced thrust
• High-speed steel construction rated for steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium
• Right-hand cut, two-flute regular spiral for efficient chip removal
• DIN 338 and ANSI conforming, Series 2A
• Straight-cylindrical shank fits standard drill chucks without sleeves or adapters

Compatibility

Designed as a general-purpose jobber-length drill bit compatible with standard straight-shank drill chucks in handheld, bench, and machine tool setups capable of accommodating a 0.42 mm shank diameter.

Installation Notes

Installation and use of this bit should be performed by machinists or maintenance technicians familiar with small-diameter tooling. Secure the shank fully in a properly sized collet or chuck before use, and confirm that spindle speed is set appropriately for the workpiece material and bit diameter. Small-diameter bits are susceptible to breakage under side load or misalignment — keep feeds light and maintain axial alignment throughout the cut. No coolant-through capability is present on this tool; apply cutting fluid externally when working with harder workpiece materials.