Balax 10527-010 Thread Forming Tap 3-48 Unc Bottoming Hss

Product Description

The BALAX 10527-010 is a thread forming tap designed for creating 3-48 UNC internal threads in blind hole applications. Unlike cutting taps, thread forming taps displace material rather than cutting it, producing stronger threads with no chips to clear from the hole. This tap is constructed from high-speed steel (HSS) with a bright, uncoated finish and carries a Thread Limit of H7. It is suited for use in ductile metals and softer alloys where cold-forming is appropriate. The bottoming chamfer, with approximately 2.5 chamfered threads, allows threading close to the bottom of a blind hole.

This tap fits production and maintenance applications where 3-48 UNC threads are required in blind holes. The BXB series designation indicates it is a BALAX thread forming design intended for use in materials with sufficient ductility to accept cold-form threading. Machinists and maintenance technicians working in precision assembly, electronics, and small-fastener applications will find this tap appropriate for their work. Right-hand thread direction matches standard 3-48 UNC fastener orientation.

Key Features

• Thread forming (chipless) design produces stronger threads and eliminates chip extraction from blind holes
• Bottoming chamfer with 2.5 chamfered threads for threading close to the bottom of a blind hole
• High-speed steel construction for durability in production and maintenance environments
• Bright, uncoated finish suitable for use with standard tapping fluids
• H7 thread limit for close-tolerance 3-48 UNC thread production
• Right-hand thread direction, no coolant-through feature, zero oil grooves

Compatibility

Designed as an OEM-style thread forming tap for 3-48 UNC blind hole threading applications in ductile materials that support cold-form thread production.

Installation Notes

Thread forming taps require a specific drill size matched to the material and thread form - consult a thread forming tap drill chart before selecting the pilot hole diameter. A qualified machinist or maintenance technician should ensure the workpiece material is ductile enough to accept cold-form threading. Use a quality tapping fluid appropriate for the workpiece material to extend tap life and maintain thread quality. Do not use thread forming taps in brittle materials such as cast iron.