T-shank   T101B 100mmx1.3mmx10T HCS, ground teeth and taper ground Softwood, chipboard, wood core plywood, fbre boards (3-30 mm) X2

T-SHANK T119BO    75mmX1.0mmX12T HCS, wavy set, milled,    S-shape softwood(2-15mm),plywood ,chipboards,wood core plywood,fibre boards.   especially for curved cuts  X2

T-SHANK T127D 100mmX1.0mmX8T, wavy set, milled, thin to thick   sheet metal(3-15mm),pipes+profiles,(dia.<30mm) x2

T-SHANK T118A 75mmx1.0mmx21T HSS, wavy set, milled Thin sheet   metals (1-3 mm) X2