100% Australian Owned www.sutton.com.au Special Tooth Form (chip-breaker) 45° Chamfer a a b b fig. 1 Unequally Indexed Cutting edges finishing, slotting & roughing with the one tool! Multi-tasking is here... R45 STF Endmills As a part of Sutton Tools commitment to introducing innovative new products, Sutton Tools has launched the new R45-STF (Special Tooth Form) carbide endmill. The R45-STF is a semi-roughing tool, which eliminates the use of finishing endmills in many cases due to its unique chip-breaker design that produces an excellent work piece finish, yet enables higher speeds and feeds, as it produces short chips, even in longer chipping materials. The high performance - four flute geometry with unequally indexed cutting edges (fig.1 aand lower cutting forces, when combining TiAlN coating effectively. This results in longer tool life as the build up of harmonics is minimized, hence, the cutting edges remain sharper longer. Another feature of the geometry, is the 45° chamfer at the outer corners of the cutting edges, which offers increased strength, as often, this area can wear with heavier roughing cuts. The R45-STF is the complete universal endmill designed for materials from aluminiums and general steels, to a wide range of latest generation materials like (High) Alloyed steels, Stainless, Titanium, etc.