Taps are used to cut screw threads on the internal surfaces of holes, creating the “female” half (nut) of the screw. High precision is of vital importance, particularly in areas such as automotive engines, which require precision screws.

OSG offers a lineup of taps with diameters in various sizes and with specifications suitable for a wide variety of uses.

OSG’s VP(O)-DC-MT taps are one of the industry leading taps for processing threads in cast iron, ductile iron and cast aluminium. The combination of ultra-strong rake with OSG’s VC10 powdered metal substrate makes this tap an ideal solution for threading ductile castings.

The VP(O)-DC-MT series powdered metal straight fluted taps for cast iron and aluminium die cast components, synchro taps at cutting speeds > 30 m/min, are manufactured of a highly wear resistant powder metal substrate in a straight flute design for high rigidity. The taps are also available with an oil hole.

When tapping M16 x 1.5 thread in GGG40 material using emulsion on a vertical machining center with a tapping length of 26mm (blind and through holes) the tapping speed that can be achieved is 40m/min.

When tapping M10 x 1.5 in GG25 material without emulsion, also on a vertical machining center, with a tapping length of 18mm the tapping speed that can be achieved is 49m/min.

When tapping M10 x 1.5 in ADC (aluminium die cast alloys) material using emulsion on a vertical machining center with a tapping length of 30mm and the tapping speed that can be achieved is 30m/min.

OSG have released new sizes of the threading taps in December 2017 and further products of the VP(O)-DC-MT range will be released in January and February 2018.

For further details contact Somta Tools on TEL: 011 390 8700 or visit www.somta.co.za