Precision Twist Drill 6000236 Extra Length Drill Bit Hss

Product Description

The PRECISION TWIST DRILL 6000236 is a high-speed steel extra length drill bit designed for professionals who need extended reach and consistent performance in deep-hole drilling applications. With a 0.3906 inch diameter, a 12 inch overall length, and a 9 inch flute length, this bit handles deep-bore work that standard-length bits cannot reach. The 118-degree standard point angle and right-hand spiral flute geometry provide reliable chip evacuation and accurate entry. The bright, uncoated finish suits a wide range of workpiece materials without the risk of coating incompatibility. Straight-cylindrical shank provides positive chuck engagement in standard drill chucks and drill press spindles. Web-thinning reduces thrust load at the cutting tip for cleaner starts.

This bit is built for general-purpose drilling across metal fabrication, maintenance, and manufacturing environments. It is suited for drilling aluminum, magnesium, copper, nickel, titanium, stainless steel, malleable iron, nickel alloy, hardened steel, high-strength bronze, and reinforced plastic materials. The Series 1290 extra length format is a common choice for machinists, maintenance mechanics, and tool-and-die professionals who need to reach through thick stock, fixtures, or structural members where standard jobber-length bits fall short.

Key Features

• 0.3906 inch diameter with matching 0.3906 inch straight-cylindrical shank for positive chuck fit
• 12 inch overall length and 9 inch flute length for deep-reach drilling applications
• 118-degree standard point angle with web-thinned, tapered web configuration for reduced thrust
• High-speed steel construction with bright uncoated finish compatible with a broad range of materials
• 2-flute regular spiral design promotes efficient chip clearing in deep holes
• Meets ANSI standards; Series 1290 general-purpose grade

Compatibility

Designed as an OEM-style general-purpose extra length drill bit suitable for use with standard drill chucks and drill press spindles accepting a 0.3906 inch straight-cylindrical shank. Compatible primary workpiece materials include aluminum, magnesium, copper, nickel, synthetic, and titanium; secondary materials include hardened steel, high-strength bronze, magnesium alloy, malleable iron, nickel alloy, reinforced plastics, and stainless steel.

Installation Notes

Secure the straight-cylindrical shank firmly in a keyed or keyless chuck before operation; verify runout is within acceptable limits for the application. Power down and lock out the drill press or drilling machine before changing bits. Use appropriate cutting fluid or coolant for the workpiece material to extend tool life, noting that this bit does not have coolant-through capability. Follow applicable shop safety standards and wear rated eye protection during all drilling operations.