Value Collection 01188721 No. 72 Hss Jobber Drill Bit

Product Description

The VALUE COLLECTION 01188721 is a No. 72 wire-size jobber-length drill bit designed for precision drilling in steel, cast iron, and similar ferrous materials. Built from high speed steel (HSS) with an oxide coating, this bit delivers solid wear resistance for general-purpose drilling tasks. The 118-degree standard point angle suits a wide range of common shop and field applications. At 1.125 inches overall length with a 0.3125-inch flute length, this is a compact bit sized for tight-tolerance holes in thin stock, sheet metal, and small components. A web-thinned, tapered-web geometry reduces entry force and improves chip evacuation. Licensed trades and machinists working with small-diameter hole requirements will find this bit performs reliably in both hand-held and bench-drill setups.

This bit is suited for production and maintenance drilling in residential and commercial settings where No. 72 wire-size holes are specified. Typical applications include pilot holes, clearance holes for small fasteners, and precision holes in ferrous workpieces. The straight cylindrical shank seats securely in standard drill chucks. Right-hand cutting direction is compatible with conventional drill press and handheld drill operation. The regular spiral flute promotes steady chip removal during through-hole drilling in steel and cast iron.

Key Features

• No. 72 wire size, 0.0250-inch diameter for tight-tolerance small-hole work
• High speed steel construction provides durability in ferrous materials
• Oxide coating improves surface hardness and reduces friction during cutting
• 118-degree standard point angle for general-purpose drilling in steel and cast iron
• Web-thinned tapered web reduces thrust and aids chip flow
• Straight cylindrical shank fits standard drill chucks without adapters

Compatibility

Designed as a general-purpose jobber drill bit for use in standard drill chucks accepting 0.0250-inch straight-shank tooling. Primary workpiece materials are steel and cast iron.

Installation Notes

Install this bit into a properly sized drill chuck and tighten securely before operation. For best results in steel and cast iron, use a cutting fluid or cutting oil to extend bit life and improve hole finish. Ensure the workpiece is clamped or fixtured before drilling to prevent movement at such small diameters. Replace the bit if cutting edge wear causes excessive heat buildup or deviation from the intended hole diameter.