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TRUEGARD Soluble 384 Coolant - 275 Gallon Tote

TRUEGARD HD 258 Cutting Oil - 275 Gallon Tote

by Truegard
SKU TG_HD258_275
$3,824.59 - $3,824.59
$3,824.59
$3,824.59 - $3,824.59
$3,824.59

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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    Find answers to common questions about our products and services

    • HD-258 is formulated primarily for tough ferrous machining applications, and is specifically suited for difficult-to-machine materials like stainless steel and nickel-based alloys. The combination of sulfur and fat additives provides the film strength needed to handle these demanding materials without oil film breakdown.

    • Yes - one of HD-258's intended uses is as a performance-boosting additive for lighter-duty cutting oils. Its moderate viscosity makes it easy to blend, and its extremely high additive content means even a relatively small addition can significantly improve the load-carrying ability of a lighter base oil.

    • HD-258 is designed for heavy, slow machining operations including drilling, tapping, threading, broaching, gear cutting, stamping, punching, and drawing. Its moderate viscosity, wipe resistance, and slight adhesiveness make it particularly well-suited to these high-load, low-speed applications.

    • The sulfur compounds in HD-258 are active extreme-pressure (EP) additives that react under heat and pressure to prevent metal-to-metal welding during heavy cuts - this is especially critical when machining stainless steel and exotic alloys. However, active sulfur-based oils can cause staining or corrosion on sensitive non-ferrous metals like copper or brass, so HD-258 should be used on ferrous materials as intended.

    • No - HD-258 is optimized for heavy, slow machining where high film strength and load-carrying ability are the priority. Its moderate viscosity and adhesive nature are advantages in those conditions, but a lighter-duty or water-miscible cutting fluid would be more appropriate for high-speed operations where heat dissipation is the primary concern.

    • The product uses multiple types of sulfur compounds and fatty additives that together provide effective lubrication across a range of operating temperatures, ensuring the oil film does not rupture or lose effectiveness as heat builds during heavy machining. This multi-additive approach is what allows it to sustain heavy loads without performance loss.