Precision Twist Drill 6000438 Extra Length Drill Bit

Product Description

The PRECISION TWIST DRILL 6000438 is a 5/8-inch diameter extra length drill bit designed for deep-hole drilling applications that standard-length bits cannot reach. Built from high-speed steel with a bright uncoated finish, it features an 18-inch overall length and a 13-inch spiral flute, giving technicians and machinists extended reach without sacrificing rigidity. The 118-degree standard point angle and web-thinned tip reduce entry force and improve chip clearance. The straight-cylindrical shank seats securely in standard drill chucks. This bit suits metal fabricators, maintenance technicians, and skilled tradespeople who need controlled, precise drilling through thick stock or structural members.

The 6000438 is a Series 1813 general-purpose extra length bit intended for drilling aluminum, magnesium, copper, nickel, titanium, synthetic materials, and a broad range of secondary workpiece materials including stainless steel, nickel alloys, malleable iron, hardened steel, high-strength bronze, and reinforced plastics. It is well suited for mechanical, HVAC, plumbing, and electrical rough-in work where deep-reach drilling through framing, plenums, or structural assemblies is required. The right-hand cutting direction and regular spiral flute geometry support consistent chip evacuation in both handheld and drill-press setups.

Key Features

• 5/8-inch diameter with 18-inch overall length for deep-reach drilling
• 13-inch spiral flute length supports efficient chip evacuation in deep holes
• High-speed steel construction with bright uncoated finish for general-purpose metal drilling
• 118-degree standard point angle with web-thinned, tapered-web geometry reduces walking and entry force
• Straight-cylindrical shank compatible with standard 3-jaw drill chucks
• Right-hand cutting, 2-flute regular spiral meets ANSI standards

Compatibility

Designed as a general-purpose extra length drill bit compatible with standard drill chucks accepting a 5/8-inch straight-cylindrical shank. Suitable for use in drill presses, magnetic-base drills, and heavy-duty handheld drills rated for 5/8-inch tooling.

Installation Notes

Installation and use should be performed by qualified machinists or trade professionals familiar with drill press or power-drill operation. Secure the shank fully in the chuck and verify runout before drilling. When drilling deep holes, retract the bit periodically to clear chips and prevent heat buildup, especially in ferrous or stainless materials. Follow applicable workplace safety standards and wear appropriate PPE including eye protection.