Multi-purpose metalworking fluid OSTO

coolingdrillingfor tapping

Product overview
OSTO (Oster’s Superior Threading Oil) is a heavy-duty dark thread cutting oil formulated for clean, precise threading on ferrous metals and stainless steel. Designed to cool the workpiece and reduce friction during pipe and bolt threading operations, OSTO improves process stability in industrial machining environments.

Key benefits

• Increased die life: Reduces die wear and frequency of resharpening, lowering tooling costs.
• Consistent, clean threads: Produces sharp, well-defined threads with a smooth finish.
• Prevents chip welding: Minimizes chip adhesion to tooling surfaces, reducing breakage and downtime.
• Strong cling and lubrication: Adheres to the work surface to provide continuous lubrication and cooling at the cutting interface.
• Extended shelf stability: Formulation resists breakdown during storage and use.

Technical specifications

• Commercial name: OSTO (Oster’s Superior Threading Oil)
• Composition: Blend including sulfur, chlorinated paraffin and animal fats
• Suitable materials: Ferrous metals (steel) and stainless steel
• Primary uses: Pipe threading, bolt threading, drilling lubricant, tapping fluid, broaching, metal cutting
• Key properties: Prevents chip welding, reduces friction, cools the workpiece, strong cling, long shelf life

Applications

• Pipe threading
• Bolt threading
• Stainless steel pipe and bolt threading
• Drilling lubrication
• Tapping fluid
• Broaching and general metal cutting

Packaging & ordering
OSTO is offered in multiple packaging options to suit workshop and plant requirements. Typical variants include a 5 gallon bucket (No. 95105) and a 55 gallon drum (No. 95155). Product numbers and additional packaging options are listed on the site for ordering.

Downloads & documentation

• OSTO – Oster’s Superior Threading Oil – Information (OSTOFlyer.pdf)
• OSTO – Oster’s Superior Threading Oil – MSDS (OSTOMSDS.pdf)
• OSTO – Oster’s Superior Threading Oil – SDS (OSTOSDS.pdf)
• Oster Bestoil – MSDS (BestoilMSDS.PDF)

Safety & handling
OSTO is positioned as a professional alternative to general-purpose oils (engine oil, mineral oil, WD-40) and to other pipe-threading oils. The product is described on site as containing no carcinogenic agents; users must consult the SDS/MSDS documents for full safety, handling and disposal instructions before use.