Hole Saw With 8% Cobalt 14mm To 210mm . Bi-metal hole saws HSSE-Co 8 with fine toothing. The fine toothing is particularly suitable for cutting metals. It ensures smoother running and reduces the necessary effort. The reduction in heat development during cutting increases tool life, especially in the case of metals. Suitable for alloyed and non-alloyed steels (up to 1.000 N/ mm² strength), high chromium alloyed steels such as stainless steel, also steels resistant to rusts and acids, non-ferrous and light metals. Characteristics: • High rotational precision. • Sturdy construction. • Hole saw and shank in two parts, so hole saws of different diameters can be exchanged and fitted more rapidly. • Positive chipping and cutting angles ensure more aggressive cutting. • The teeth are welded onto a jacket of special steel. • Good chip removal. • Slots in the jacket side assist removal of cut outs. • Exchangeable centring drill User instructions: • Unsuitable for percussion-drill operation. • Only slight pressure required to start drilling. • Drill with light, steady pressure. • Avoid pendulum movements while drilling. • Observe table of drilling speeds. • Use prescribed cooling agents.