Balax 10422-010 Thread Forming Tap 2-64 Unf Bottoming Hss

Product Description

The BALAX 10422-010 is a thread forming tap designed to cut 2-64 UNF internal threads in blind hole applications. Unlike cutting taps, thread forming taps displace material rather than removing chips, producing stronger threads with a better surface finish. This tap is built from high-speed steel with a bright uncoated finish and carries an H2 thread limit for close tolerance work. It is suited for threading soft to medium-hardness metals where chipless thread forming is preferred. Machinists and toolroom technicians use this tap in manual tapping operations, CNC machining centers, and drill press setups requiring fine unified threads in small fastener holes.

This tap is intended for blind hole threading in applications that call for a 2-64 UNF thread form with a 3B class of fit. The bottoming chamfer style allows threading to within a few pitches of the bottom of a blind hole, making it appropriate for shallow-depth thread requirements common in instrument, electronics, and precision mechanical assemblies. The BXB series designation identifies it within the BALAX thread forming line. No coolant-through feature is present, so conventional surface-applied cutting fluid is used during the tapping operation.

Key Features

• Thread forming design displaces material for chip-free threading and stronger thread form
• 2-64 UNF thread size with 3B class of fit and H2 thread limit for close tolerance control
• Bottoming chamfer with 2.5 pitch lead for threading near the bottom of blind holes
• High-speed steel construction for durability across a range of workpiece materials
• Bright uncoated finish suitable for use with standard tapping fluids
• Right-hand thread direction, no oil grooves, zero flutes for smooth forming action

Compatibility

Designed as an OEM-style replacement or direct-use thread forming tap for applications requiring 2-64 UNF internal threads in blind holes with a 3B class of fit.

Installation Notes

Installation should be performed by a machinist or qualified technician familiar with tapping procedures for small-diameter fine-pitch threads. Secure the workpiece firmly and ensure the tap is properly aligned with the drilled hole before engagement to prevent tap breakage. Apply an appropriate tapping fluid or cutting oil before and during the operation. Always follow shop safety practices and relevant machining standards when operating tapping equipment.