Cleveland C71084 Jobber Drill Bit Letter N Hss Oxide

Product Description

The CLEVELAND C71084 is a jobber-length drill bit sized to Letter N (0.3020 inches) and manufactured from high speed steel with an oxide coating. Designed for general-purpose drilling in metal, plastic, and similar materials, this bit features a 118-degree standard point angle, a regular spiral flute configuration with web thinning, and a straight-cylindrical shank for use in standard drill chucks. Overall length is 4.375 inches with a flute length of 3.0625 inches. It cuts right-hand and runs two flutes, making it a reliable production or maintenance-shop choice for machinists and trade professionals working to close tolerances.

This bit is suited for general-purpose drilling operations in residential, commercial, and light industrial environments. Typical applications include drilling pilot holes, through-holes, and clearance holes in ferrous and non-ferrous stock. The oxide finish provides mild lubricity and corrosion resistance during cutting operations. It is commonly used by machinists, pipefitters, electricians, and HVAC techs who need a dependable jobber-length bit for everyday production and service work.

Key Features

• Letter N size — 0.3020 inches diameter with a tolerance of -0.0010 to 0.0000 inches for precise hole sizing
• 118-degree standard point angle with web-thinned, tapered web for easier penetration and reduced thrust
• High speed steel construction suitable for general-purpose drilling in a wide range of materials
• Oxide coating provides mild lubricity and basic corrosion resistance
• Regular right-hand spiral, 2-flute design for efficient chip evacuation
• Meets ASME B94.11M and DIN 338 standards — Series 2001G

Compatibility

Designed as a general-purpose jobber-length drill bit compatible with any standard drill chuck accepting a 0.3020-inch straight-cylindrical shank.

Installation Notes

Secure the shank fully in a properly sized drill chuck before operation and verify the chuck is tightened to prevent slippage. Use appropriate cutting fluid or lubrication when drilling ferrous metals to extend bit life and maintain dimensional accuracy. Operate at a spindle speed appropriate for the workpiece material and bit diameter — consult standard speeds-and-feeds references. Inspect the cutting edges before each use and replace or resharpen if chipping or dulling is observed.