Balax 14527-000 Thread Forming Tap 5/8-11 Unc Bottoming Hss

Product Description

The BALAX 14527-000 is a thread forming tap designed for cutting 5/8-11 UNC internal threads in blind hole applications. Unlike cutting taps, thread forming taps displace material rather than remove it, producing stronger threads with no chips to clear from the bore. This tap is built from high-speed steel with a bright uncoated finish and meets a 3B class of fit with an H7 thread limit. It is suited for use in ductile metals where cold-forming is appropriate. Licensed HVAC, plumbing, and mechanical contractors as well as machining and maintenance trades will find this tap useful for threading blind holes in steel, aluminum, and similar formable materials.

The 14527-000 is configured as a bottoming chamfer tap, meaning it can form threads nearly to the bottom of a blind hole. With a 1-inch thread length and an overall length of 3.8125 inches, it fits standard tap handles and machine tool holders sized for the 0.480-inch shank diameter. The BXB series designation indicates this is a cold-forming style within BALAX's product line, intended for production or maintenance threading where chip-free operation is a priority.

Key Features

• Thread forming (chipless) design produces stronger threads and eliminates chip removal from blind holes
• Bottoming chamfer with 2.5 thread chamfer length allows threading close to the bottom of a blind bore
• High-speed steel construction provides hardness and wear resistance for production use
• H7 thread limit and 3B class of fit for standard UNC thread tolerance
• Single oil groove aids lubrication during the forming process
• Right-hand thread direction, 5/8-11 UNC

Compatibility

Designed for blind hole threading in ductile materials using 5/8-11 UNC right-hand thread specification. Fits standard tap wrenches and machine holders accepting a 0.480-inch shank diameter.

Installation Notes

Thread forming taps require a properly sized forming tap drill - do not use a standard drill chart for cutting taps, as the forming tap drill diameter is larger. Apply a suitable tapping fluid rated for the workpiece material before and during the forming operation. Secure the workpiece fully before tapping to prevent movement. Follow applicable OSHA machine safety guidelines when operating drill presses or tapping machines.