Wiha Product Catalogue 2008/2009 - KAVON CZ sro

Wiha Torsion Bit.Patented torsion zone for longer service life.TorqueThe red line indicates the steepincrease in torque with hard applications,e.g. in metal.The blue line shows a steadytorque increase in soft applications,e.g. in wood working.The main reason for wear and tearin soft applications, like woodworking is the abrasion of theprofile edges because the bitrattles in the screw. In this case ahard bit is required (Wiha HOT).TimeFor hard applications like metal,bit breakage is the main cause ofwear and tear. This occurs mainlyat the torque peaks during thefinal stage of the application.In this case, a tough bit (Wiha ZOT)is required.The special range of Wiha torsionbits with the patented torsion zoneoffers optimum products both forsoft and hard screw applications.Wiha Torsion Bit.Wiha ZOT Torsion Bits• Tough, hard Torsion Quality forhard applications• Ideal for screw applications inmetal and hard materials• Elastic Torsion zone absorbs thestrong torque peaks in the finalphase of the application (redline)• Highly resistant to wear and teardue to special heat treatment• Hardness 61-2 HRC.Wiha HOT Torsion Bits• Extra hard Torsion quality forsoft applications• Ideal for screw applications inwood and soft materials• Average requirementsconcerning elasticity are used tooptimise performance andresistance to wear and tear(blue line)• Hardness 63-2 HRC.• For trade and DIYWiha TiN Torsion Bits• Tough, hard Torsion qualitywith very hard titanium-nitride(TiN) coating• Optimum resistance towear and tear due to very hardTiN coating• Combines the advantages ofWiha HOT Bits and ZOT Bits inone outstanding bit• For trade and DIY, especiallyfor industry• For trade and DIY148 www.wiha.com