Value Collection 01108216 Drill Blank Size 21 Hss

Product Description

The VALUE COLLECTION 01108216 is a wire gauge size 21 drill blank made from high speed steel with a bright uncoated finish. Drill blanks are precision-ground cylindrical rods used as raw stock for custom tooling, reamer blanks, punch pins, and specialty cutting tools. This blank measures 0.1590 inches in diameter and 3.25 inches in overall length. The bright uncoated finish indicates no additional surface treatment, making it suitable for applications where the base HSS material properties are sufficient. Machinists and tool-and-die makers rely on drill blanks like this as starting material when standard off-the-shelf tooling does not meet a specific application requirement.

This drill blank is intended for use in machine shops, tool rooms, and manufacturing environments where custom cutting tools or precision pins are fabricated in-house. It is commonly used to produce custom reamers, ejector pins, guide pins, and punch tooling. The wire gauge sizing corresponds to a 0.1590-inch diameter, which falls in a range commonly needed for close-tolerance holes in metalworking and die-making operations. This item is sold individually but carries a minimum order quantity of 10 units per order.

Key Features

• Wire gauge size 21 corresponds to a precise 0.1590-inch diameter for consistent fitment in close-tolerance applications
• High speed steel construction provides hardness and wear resistance suitable for custom tooling fabrication
• Bright uncoated finish — no additional coating to account for when grinding or sharpening to final geometry
• 3.25-inch overall length provides sufficient stock for most common blank-to-tool conversions
• Minimum order quantity of 10 units supports stocking in tool room environments

Compatibility

Designed as a standard wire gauge size 21 drill blank suitable for use in tool-and-die, machining, and general metalworking applications where a 0.1590-inch diameter HSS blank is required.

Installation Notes

Drill blanks are raw stock and require machining or grinding to final tool geometry before use as a cutting tool. Handle with care as HSS blanks can be brittle under lateral impact loads. Wear appropriate PPE when grinding or cutting blank stock. Final tooling produced from this blank should be inspected for dimensional accuracy before use in production applications.