Guhring 9039750120050 Thread Forming Tap M12x1.00

Product Description

The GUHRING 9039750120050 is a thread forming tap designed for M12x1.00 metric fine threading in blind hole and through-hole applications. It is manufactured from High-Speed Steel-E-CO (cobalt-bearing HSS) and finished with a Titanium Nitride (TiN) coating that extends tool life in demanding materials. With a 6HX class of fit and D7/D8 thread limit, this tap produces accurate internal threads to metric fine tolerances. The modified bottoming chamfer — 2 to 3 threads — allows threading close to the bottom of blind holes. It is installed by machinists and toolroom professionals in production and maintenance settings.

This tap is suited for blind hole and through-hole threading operations in steel, stainless steel, cast iron, and non-ferrous metals. The TiN coating reduces friction and wear during form tapping, which displaces rather than cuts material, making it effective where chip control is critical. With a flute-by-diameter ratio of 3xD and six oil grooves, it is configured for lubricated tapping in mid-production and job-shop environments handling M12x1.00 fine-pitch thread requirements.

Key Features

• M12x1.00 metric fine thread, 6HX class of fit with D7/D8 thread limit
• High-Speed Steel-E-CO (cobalt) construction for improved heat and wear resistance
• Titanium Nitride (TiN) coating reduces friction and extends service life
• Modified bottoming chamfer (2-3 threads) for threading close to blind hole bottoms
• Six oil grooves support lubricated tapping and heat dissipation
• Compatible with steel, stainless steel, cast iron, and non-ferrous metal workpieces
• Right-hand thread direction, Series 3975

Compatibility

Designed for M12x1.00 metric fine thread forming in steel (P), stainless steel (M), cast iron (K), and non-ferrous metal (N) workpieces, as indicated by material application codes P, M, K, and N.

Installation Notes

Thread forming taps are installed by machinists using a tapping machine, CNC machine, or hand tap wrench with appropriate torque control. Always use a threading lubricant or cutting oil matched to the workpiece material — especially with stainless steel — to prevent galling and tap breakage. Ensure the pilot hole diameter is correct for form tapping, as undersized holes significantly increase torque and risk of tap failure. Secure the workpiece firmly before tapping and verify spindle alignment to avoid thread distortion.