Eagle Cutting Tool MT-300-350-B-I Hss Metric Bottom Tap

Product Description

The EAGLE CUTTING TOOL MT-300-350-B-I is a high-speed steel (HSS) metric bottom tap sized M30.0 x 3.50, designed to cut full threads to the bottom of a blind hole. Bottom taps have minimal lead threads, allowing them to thread closer to the floor of a hole than taper or plug style taps. At 0.97 pounds, this is a full-size industrial tap suited for machine shops, maintenance facilities, and trade contractors who need metric threading in steel, cast iron, aluminum, and similar materials.

This tap is used wherever M30.0 x 3.50 metric threads are required in blind-hole applications. Common uses include fabrication work, equipment repair, and structural assemblies where a through-hole is not possible and maximum thread engagement is needed. It is appropriate for both manual tapping with a tap wrench and machine tapping in a drill press or CNC setup when used at appropriate speeds and with cutting fluid.

Key Features

• M30.0 x 3.50 metric thread form for large-diameter blind-hole threading
• Bottom tap style provides maximum thread depth in blind holes
• High-speed steel (HSS) construction offers durability across a range of workpiece materials
• Import-grade tap suitable for general shop and maintenance use
• Weighs 0.97 pounds — full industrial size for M30 class work

Compatibility

Designed for use in any application requiring M30.0 x 3.50 metric internal threads. Compatible with standard tap wrenches and machine tap holders sized for large-diameter taps.

Installation Notes

Tapping should be performed by a machinist or qualified tradesperson familiar with cutting speeds, feed rates, and proper tap alignment. Always use an appropriate cutting fluid or tapping compound to extend tool life and improve thread quality. Ensure the workpiece is securely clamped before starting. Back the tap out periodically to clear chips when tapping by hand, especially in deep blind holes.

Technical Specifications

• Thread Size: M30.0 x 3.50
• Tap Style: Bottom
• Material: High-Speed Steel (HSS)
• Thread Standard: Metric
• Weight: 0.97 pounds

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: MT-300-350-B-I