Titan Usa CD40318 Jobber Drill Bit Letter R Hss

Product Description

The TITAN USA CD40318 is a letter-size R jobber-length drill bit designed for general-purpose drilling in metal and alloy workpieces. Built from high speed steel with a black oxide coating, it runs a standard 118-degree point angle and a right-hand spiral flute configuration. The bit measures 4.75 inches overall with a 3.4375-inch flute length and a straight cylindrical shank at 0.3390 inches in diameter. The black oxide finish reduces friction and provides light corrosion resistance during storage. Machinists, tool-and-die workers, and maintenance technicians use this bit for production and maintenance drilling in ferrous and non-ferrous materials.

This bit is suited for drilling steel, stainless steel, cast iron, non-ferrous metals, and superalloys including titanium. It fits standard drill chucks accepting a 0.3390-inch straight cylindrical shank. Typical applications include drilling clearance and tap holes in structural steel, machine components, and fabrication work. The regular spiral type and 2-flute geometry support efficient chip evacuation in through-hole and moderate-depth drilling operations up to 3.4375 inches.

Key Features

• Letter R drill size — 0.3390 inches decimal equivalent
• High speed steel construction for durability in metal drilling
• Black oxide coating reduces friction and surface corrosion
• 118-degree standard point angle for general-purpose use
• 2-flute regular spiral for efficient chip evacuation
• Right-hand cut with straight cylindrical shank — fits standard drill chucks

Compatibility

Designed as an OEM-style replacement or standard jobber drill bit for use in any drill press, CNC drilling setup, or hand drill accepting a 0.3390-inch straight cylindrical shank. Primary workpiece material codes P, M, K, N, and S are supported, covering steel, stainless steel, cast iron, non-ferrous metals, and superalloys.

Installation Notes

Install this bit in a properly sized drill chuck and tighten securely before operation. Ensure the workpiece is clamped or fixtured to prevent movement during drilling. Use appropriate cutting fluid when drilling stainless steel, cast iron, or titanium alloys to extend bit life and maintain hole quality. Inspect the cutting edges for wear or chipping before each use and replace if the point shows visible degradation.