Cleveland C72120 Jobber Drill Bit Wire 20 Hss 118 Deg

Product Description

The CLEVELAND C72120 is a jobber-length drill bit designed for general-purpose drilling in metal, wood, and plastic. Manufactured from high speed steel (HSS) with a bright uncoated finish, this bit carries a 118-degree standard point angle and a web-thinned, tapered web configuration that reduces thrust and improves centering at entry. The straight-cylindrical shank measures 0.1610 inches in diameter, matching the wire size 20 designation. Overall length is 3.25 inches, with a flute length of 2.125 inches and a shank length of 1.125 inches. It is a right-hand cut, two-flute spiral bit suited for hand-held drills, drill presses, and CNC applications. Licensed machinists, maintenance technicians, fabricators, and general tradespeople are the primary users.

The C72120 is a Series 2002G bit intended for general-purpose production and maintenance drilling. The 4xD flute-to-diameter ratio makes it suitable for through-hole and blind-hole work in a wide range of workpiece materials. Typical applications include sheet metal layout, mechanical assembly, and field service drilling where a wire-gauge size 20 pilot or finish hole is required. This bit is sold individually but requires a minimum order quantity of 12 units, making it appropriate for shop stocking and toolroom replenishment.

Key Features

• Wire size 20 designation with 0.1610 inch decimal diameter and tight tolerance of -0.0007 to 0.0000 inches
• High speed steel construction for durability across a broad range of workpiece materials
• 118-degree standard point angle with web-thinned, tapered web for reduced entry thrust
• Bright uncoated finish compatible with cutting fluids and dry drilling
• Regular spiral, right-hand cut, two-flute design promotes clean chip evacuation
• Meets ASME B94.11M and DIN 338 standards for jobber-length drill bits

Compatibility

Designed as a general-purpose jobber-length drill bit conforming to ASME B94.11M and DIN 338, compatible with any standard drill chuck accepting a 0.1610 inch straight-cylindrical shank. No specific machine or equipment model compatibility was provided in the product data.

Installation Notes

Install in a properly sized drill chuck and tighten securely before operation. Ensure the workpiece is clamped or fixtured to prevent rotation during drilling. Apply a cutting fluid or lubricant when drilling ferrous metals to extend bit life and maintain hole-size tolerance. Inspect the cutting edges for wear before each use and replace the bit if the point shows chipping or rounding that may cause oversized or off-tolerance holes.