Eagle Cutting Tool MT-040-070-B-I M4.0x0.70 Hss Metric Tap

Product Description

The EAGLE CUTTING TOOL MT-040-070-B-I is an M4.0 x 0.70 high-speed steel (HSS) metric bottom tap designed for threading blind holes to the full depth of the cut. As a bottom tap, it features minimal chamfer on the leading threads, allowing it to cut threads close to the bottom of a drilled hole. This tool is suited for hand tapping or machine tapping operations in metal fabrication, maintenance, and repair work. The HSS construction provides the hardness and wear resistance needed for tapping steel, aluminum, brass, and similar materials at standard shop cutting speeds.

This tap is used in applications requiring an M4.0 metric thread with a 0.70 mm pitch, which is the standard coarse-thread pitch for that diameter. Typical installation scenarios include threading drilled holes in sheet metal, structural components, fixtures, and machine parts. It is appropriate for both production floor and field repair use. Machinists, maintenance technicians, pipefitters, and HVAC fabricators working on metric-threaded fastener holes will find this tap fits standard M4.0 tapping workflows.

Key Features

• Bottom tap geometry allows threading to the base of blind holes
• M4.0 x 0.70 metric coarse thread profile
• High-speed steel construction resists wear during metal tapping
• Compatible with standard tap wrenches and tapping heads
• Minimum order quantity of 1 unit

Compatibility

Designed as a standard M4.0 x 0.70 metric bottom tap suitable for use with compatible tap wrenches, tapping attachments, and CNC or manual drill press setups requiring that thread form.

Installation Notes

Tapping operations should be performed by a qualified machinist or maintenance technician following standard shop safety procedures. Always use appropriate cutting fluid to reduce friction and extend tap life, and ensure the workpiece is securely clamped before beginning. When hand tapping a blind hole, advance the tap incrementally and back off periodically to break the chip. Inspect the tap for wear or damage before each use and never force a tap beyond its rated capacity.

Technical Specifications

• Thread Size: M4.0 x 0.70
• Thread Type: Metric Coarse
• Tap Style: Bottom Tap
• Material: High-Speed Steel (HSS)
• Weight: 0.09 pounds

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: MT-040-070-B-I