Drill Rod Tool Steels 81176026 4142 Flat Stock 36x1x5/16

Product Description

The DRILL ROD TOOL STEELS 81176026 is a pre hardened alloy steel flat stock bar made from AISI/SAE Type 4142 chromium-molybdenum steel. It measures 36 inches long, 1 inch wide, and 5/16 inch thick, and weighs approximately 3.17 pounds. Supplied in a pre hardened condition, this flat stock is ready for tooling, fixturing, die making, and general machine shop applications without requiring additional heat treatment. Machinists, toolmakers, and fabricators working with medium- to high-strength steel components will find this bar suited to precision work where tight dimensional tolerances and consistent material hardness are required.

This flat stock is used in job shops, tool and die operations, and industrial manufacturing environments where AISI/SAE 4142 alloy steel is specified for its strength, toughness, and wear resistance. Typical applications include jigs, fixtures, punches, dies, shafts, and structural machine components. The pre hardened condition makes it practical for direct machining to final dimensions in most medium-duty tooling scenarios.

Key Features

• AISI/SAE Type 4142 chromium-molybdenum alloy steel for high strength and toughness
• Pre hardened condition eliminates the need for post-machining heat treatment in many applications
• 36 inch length with a +0.250 inch length tolerance
• 1 inch width with a +0.005 inch width tolerance
• 5/16 inch thickness with a +0.001 inch thickness tolerance
• 0.003 inch square tolerance for consistent cross-section geometry

Compatibility

Designed as a standard AISI/SAE Type 4142 pre hardened alloy steel flat bar suitable for general tooling, die making, and precision machining applications where this material specification is required.

Installation Notes

This flat stock is intended for use by qualified machinists, toolmakers, and fabricators. Secure the workpiece properly in a vise or fixture before cutting or machining. Use cutting tools and feeds appropriate for pre hardened alloy steel to avoid work hardening or tool damage. Follow applicable shop safety practices when sawing, milling, or grinding hardened steel.