Drill Rod Tool Steels 66827 O1 Tool Steel Flat Stock

Product Description

The DRILL ROD TOOL STEELS 66827 is an O1 oil-hardening tool steel flat stock bar intended for toolmakers, machinists, and fabricators who need a precision-ground flat blank ready for hardening. Conforming to AISI Type O1 specification, this flat stock measures 0.25 inches thick, 1.5 inches wide, and 36 inches long, with a weight of 3.87 pounds. Tight dimensional tolerances make it suitable for die blanks, punches, gauges, and similar toolroom applications where dimensional accuracy before heat treatment is critical.

O1 tool steel flat stock in this size is a common starting material for small to medium die and punch sets, fixture components, and precision tooling blanks used in job shops, tool-and-die operations, and maintenance departments. The 36-inch length allows multiple blanks to be cut from a single piece, reducing waste. It ships in an annealed condition, ready for machining prior to oil-hardening heat treatment.

Key Features

• AISI Type O1 oil-hardening tool steel, annealed and ready to machine
• Thickness tolerance of plus or minus 0.001 inches for consistent stock removal
• Width tolerance of plus 0.005 inches to minus 0.000 inches
• Length tolerance of plus 0.5 inches
• Squareness: edge 0.003 inches per inch of thickness, end 0.004 inches per inch of thickness
• 3.87 pounds per 36-inch bar - practical for single-piece toolroom use

Compatibility

Designed as a standard AISI Type O1 oil-hardening tool steel flat bar suitable for general toolroom, die-making, and precision machining applications requiring an oil-quench hardenable steel blank.

Installation Notes

Machining and heat treatment of tool steel should be performed by a qualified machinist or toolmaker familiar with O1 oil-hardening procedures. Wear appropriate PPE when cutting or grinding tool steel. Heat treatment - including austenitizing temperature, quench medium, and tempering cycles - must follow established metallurgical guidelines for AISI O1; do not attempt heat treatment without proper equipment and training. Secure the workpiece firmly before any cutting operation.