Value Collection 63323158 Drill Blank Letter L Hss

Product Description

The VALUE COLLECTION 63323158 is a Letter L drill blank ground from high speed steel and supplied in a bright, uncoated finish. Drill blanks are precision-ground cylindrical rods used as raw stock for custom tooling — most commonly for grinding special-purpose drills, punches, gauges, or other cutting tools to exact specifications. This blank measures 0.290 inches in decimal diameter, corresponding to the Letter L drill size designation, with an overall length of 4.25 inches. The high speed steel construction provides the hardness and wear resistance required for demanding shop applications where standard off-the-shelf tooling geometry does not meet the job.

This drill blank is suited for tool and die shops, machine shops, and maintenance departments that manufacture or regrind cutting tools in-house. It is appropriate for use in both light production and job-shop environments where a Letter L diameter is required in a starting-stock format. The bright, uncoated surface makes it easy to inspect for surface condition prior to grinding or machining operations.

Key Features

• Letter L drill size — 0.290 inch decimal diameter for precise tool fabrication
• High speed steel construction provides hardness and thermal resistance for cutting-tool applications
• Bright, uncoated finish allows straightforward visual and dimensional inspection
• 4.25-inch overall length offers adequate stock for grinding custom drill geometry or punch profiles
• Sold individually, suitable for low-volume tooling and maintenance needs

Compatibility

Designed as a general-purpose high speed steel drill blank for use in tool and die, machining, and maintenance shop applications requiring a Letter L diameter starting stock.

Installation Notes

Drill blanks require grinding by a qualified tool grinder or machinist before use as a cutting tool. Secure the blank properly in the appropriate grinding fixture to maintain concentricity and desired geometry. Handle with care to avoid surface nicks or gouges that could compromise the finished tool. Follow all applicable shop safety practices when operating grinding equipment.