Accupro 17967-00C M4x0.70 Thread Forming Tap Ticn Hss

Product Description

The ACCUPRO 17967-00C is a thread forming tap designed for M4x0.70 metric coarse threading in through-hole applications. Unlike cutting taps, this tool displaces material rather than removing it, producing stronger threads with no chips to clear. It is manufactured from powdered metal high-speed steel and coated with TiCN for improved wear resistance and extended tool life. The plug chamfer style provides a 4-thread lead-in, making it suitable for through-hole threading in a range of materials. Licensed machinists, tool and die makers, and precision fabricators working in production or maintenance environments are the typical users of this tap.

This tap is suited for threading M4x0.70 metric coarse through-holes in ferrous and non-ferrous workpieces where chip-free thread forming is preferred over traditional cutting. The plug chamfer makes it well-adapted for through-hole setups in machining centers, drill presses, and tapping machines. The TiCN coating supports use in higher-speed applications and increases resistance to galling and abrasion. It produces 6H class of fit threads, meeting standard metric tolerance requirements for general mechanical assemblies.

Key Features

• Thread forming design displaces material for chip-free, stronger threads
• TiCN coating improves wear resistance and extends service life in high-speed applications
• Powdered metal high-speed steel construction for consistent hardness and toughness
• Plug chamfer with 4-thread lead-in for through-hole threading
• 6H class of fit with D6 thread limit for standard metric tolerance assemblies
• Right-hand thread direction, single oil groove

Compatibility

Designed for through-hole thread forming in M4x0.70 metric coarse applications. Compatible with standard tap holders and collets accepting a 0.168 inch shank diameter. Suitable for use in CNC machining centers, drill presses, and manual tapping machines.

Installation Notes

Thread forming taps require appropriate cutting fluid or tapping compound matched to the workpiece material — do not run dry, as heat buildup will shorten tool life. Secure the tap in a properly sized holder and ensure the workpiece is rigidly fixtured before starting. Set spindle speed and feed rate per the tap manufacturer guidelines for the material and coating type. Inspect the tap for chipping or wear before each use; replace immediately if damage is detected.