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The EAGLE CUTTING TOOL MT-360-400-B-I is an M36.0x4.00 high-speed steel (HSS) metric bottom tap designed to cut full threads to the bottom of a blind hole. With a 36mm thread diameter and 4.00mm pitch, this tap handles large-diameter threading jobs where thread engagement depth is critical. The bottom tap geometry features minimal lead threads, allowing the tool to cut threads closer to the base of a blind bore than taper or plug tap styles. Machinists, maintenance mechanics, and fabricators working with metric fastener applications rely on this tap for production and repair threading in steel, cast iron, and similar materials.
This tap is suited for metalworking applications requiring large-diameter metric threads in blind holes, including heavy equipment repair, structural fabrication, and machine tool maintenance. The M36 thread size is common in industrial and heavy-duty fastening scenarios where high clamping load is required. It is intended for use with a tap wrench or machine tapping setup appropriate for the thread size.
Designed as an OEM-style replacement or direct procurement option for M36.0x4.00 metric bottom tapping applications in standard metalworking and maintenance operations.
Bottom taps should be used as the final step in a tapping sequence, after a taper or plug tap has started the thread. Always secure the workpiece and ensure the hole is properly drilled to the correct tap drill diameter for M36x4.00 before tapping. Apply appropriate cutting fluid to reduce heat and extend tool life. Use a torque-rated tap wrench or machine feed appropriate for the tap size to avoid breakage.
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