Balax 18148-010 Thread Forming Tap M5x0.80 Bottoming Hss

Product Description

The BALAX 18148-010 is a thread forming tap designed for M5x0.80 metric coarse threading in blind hole applications. Unlike cutting taps, thread forming taps cold-form the thread profile without producing chips, making them well suited for ductile metals where a stronger thread form is required. Built from high-speed steel with a bright uncoated finish, this bottoming-style tap features a 2.5-thread chamfer that allows threading to the bottom of a blind hole. It carries a 6H class of fit with a D8 thread limit, providing the dimensional control expected in precision fastener and assembly applications. Licensed machinists and toolroom professionals are the primary installers.

This tap is used in machine shops, production lines, and maintenance environments where metric blind hole threading is required. The bottoming chamfer makes it the correct choice when thread engagement must begin as close to the bottom of a hole as possible, such as in fixture plates, housings, and structural components machined from aluminum, mild steel, or other machinable alloys. It belongs to the BALAX BXMB series, which is engineered specifically for thread forming rather than thread cutting operations.

Key Features

• Thread forming design cold-forms threads without chips, reducing tap breakage risk in ductile materials
• Bottoming chamfer with 2.5 chamfered threads for threading close to the bottom of blind holes
• M5x0.80 metric coarse thread, 6H class of fit, D8 thread limit
• High-speed steel construction for durability across a range of machinable metals
• Bright uncoated finish suitable for use with standard tapping fluids
• Single oil groove design aids lubrication distribution during forming

Compatibility

Designed as an OEM-style thread forming tap for M5x0.80 metric coarse blind hole applications requiring a 6H class of fit. Part of the BALAX BXMB series.

Installation Notes

Thread forming taps require a properly sized forming tap drill hole - the correct hole diameter for forming differs from standard tap drill charts used for cutting taps; consult BALAX forming tap drill size tables before use. Apply an appropriate tapping fluid or cutting oil rated for thread forming to reduce torque and extend tool life. Secure the workpiece and use a calibrated tapping attachment or CNC rigid tapping cycle to maintain axial alignment and avoid tap breakage. Do not use this tap in through-hole applications where a spiral flute or standard plug tap would be more appropriate.