The blade is made from high grade Silicon - Manganese steel which no other make uses. This steel gives spring effect also. The blade is differently hardened and tempered to resist wear, bending and meet high torque requirement. Other makes offer same hardness through out the length of the blade, which is not scientific. Hardness on tip: 55 to 58 HRC. Other makes offer much less hardness on tip. Higher the hardness higher is wear resistance. The blade tip is magnetised to lift small screw etc. from confined spaces or to hold the the screw in position.\n*Allen Keys are made from special grade Alloy steel which withstands up to 30% higher Torque as compared to Allen Keys made from CrV Steel.\n*Higher hardness of 57 to 62 HRC offered in case of Brown Allen Keys along with superior steel properties enables up to 30% higher wear resistance as compared to CrV steel Allen Keys.\n*Allen Keys are value for money as the Torque and life of the same is up to 30% more than the CrV steel Allen keys.\n*The Allen Keys are Precision Drawn for perfect matching of Allen keys with the screw head.\n*Allen Keys are specially coated and oiled for rust prevention.\n*Allen Keys are aesthetically good looking.\n*TAPARIA Allen Keys generally Conform to I.S. 3082-2008\n
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