Taparia 840 Screw Driver Set with Neon Bulb Style:840 screwdriver set   Product Description The blade is made from high grade Silicon Manganese steel.The handle can stand any rough use, even hammering. This steel gives spring effect also.Hardness on tip: 55 to 58 HRC. Higher the hardness higher is the wear resistance.The handle is precisely designed to give comfortable grip even at higher torque. 				    	 					 From the Manufacturer Taparia 840 Screw Driver Set with Neon Bulb