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TRUEGARD HD-258 Cutting Oil- 55 Gallon Drum

TRUEGARD HD-258 Cutting Oil- 55 Gallon Drum

by Truegard
SKU TG_HD258_55
$888.35 - $888.35
$888.35
$888.35 - $888.35
$888.35

TRUEGARD HD-258 Cutting Oil is an exceptionally heavy duty cutting oil for tough ferrous machining applications. This highly fortified oil is also intended for use as an additive to improve the performance of lighter duty oils on machining of stainless steel and nickel based alloys. Applications include drilling, tapping, threading, broaching, gear cutting, stamping, punching, and drawing.

TRUEGARD HD-258 Cutting Oil uses several different types of additives to provide the lubrication necessary in very heavy duty metalworking. Film strength and the ability for the oil film to carry heavy loads without rupturing is very important in heavy duty machining, especially when working with stainless steels and exotic alloys. The presence of different types of sulfur and fat allow this oil to sustain heavy loads at various temperatures with no loss of effectiveness. The moderate viscosity of the oil imparts wipe resistance and slight adhesiveness to this cutting oil. These properties are important in heavy, slow machining applications.

TRUEGARD HD-258 Cutting Oil is ideal for use as a cutting oil base or as an additive to improve lighter duty oils. The viscosity is light enough to facilitate easy mixing, but heavy enough to help improve load carrying ability. The extremely high additive content and the aggressive nature of this oil provides efficient and cost effective boosting of other cutting oils.

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Product Data Sheet
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Frequently asked questions

Find answers to common questions about our products and services

  • HD-258 is formulated for tough ferrous machining applications and is especially well-suited for difficult-to-machine materials such as stainless steel and nickel-based alloys, where conventional cutting oils may fail under high load or temperature.

  • HD-258 is suitable for a broad range of metalworking operations including drilling, tapping, threading, broaching, gear cutting, stamping, punching, and drawing - making it versatile across both cutting and forming tasks.

  • Yes - one of HD-258's intended uses is as an additive to boost lighter-duty cutting oils. Its extremely high additive content and aggressive sulfur-and-fat package elevates the load-carrying ability and film strength of lower-performance oils, extending their effective range to heavier applications without replacing them entirely.

  • The multiple types of sulfur and fat additives in HD-258 form a chemically active film that sustains heavy loads at varying temperatures, preventing metal-to-metal contact during extreme-pressure machining. Because active sulfur can cause staining or corrosion on certain non-ferrous metals (e.g., copper, brass), HD-258 is recommended specifically for ferrous metals, stainless steels, and nickel-based alloys rather than general non-ferrous work.

  • The moderate viscosity gives HD-258 wipe resistance and slight adhesiveness, which is important in heavy, slow-speed machining where the oil needs to stay on the cutting zone rather than drain away quickly. It is also fluid enough to blend easily into other cutting oils when used as a performance additive.

  • HD-258 is designed for use as a neat (undiluted) cutting oil directly in heavy-duty machining operations, or as a blending additive mixed into lighter-duty oils. It is not a water-soluble or emulsifiable fluid and should not be diluted with water.