V-COIL - M4 x 0.7mm - Fluteless STI-Machine Tap. These taps have been manufactured by VÖLKEL and are part of the V-Coil brand, with 100 years of experience in manufacturing screw taps, VÖLKEL has become one of the worldwide leading suppliers for threading tools. Advantages: longer endurance as cutting taps higher possible cutting speed steady exactness of dimension and profile high stability of the forming threads high security against fracture no removal of swarf, no jaming of swarf Application: for chipless production of internal threads for nonferrous metal of good ductility unalloyed and low alloyed steel Structural Steel heat resistant steel stainless steel for long-chipping nonferrous Metal (Cooper, Brass, Bronze, Alu) Zinc alloys This is not a stock item therefore please allow 1-3 working days for dispatch. As this is not kept as a stock item, this is non-returnable & non-refundable. V-COIL - M4 x 0.7mm - Fluteless STI-Machine Tap