Dura-Blade is manufactured using metal injecting molding (MIM) technology for better quality, durability and performance|Compatible with most bayonet style (twist and lock) socket punch down tools|Extra length to access crowded panels|Dual 66 and 110 cut and terminate ends for versatility|See our Cushion-Grip Impact Punchdown Tool Kit (VDV427-822) for everything required to install and maintain 66 and 110 panels, cross-connect systems and wall jacks