RJ45 Crimping Tool: Made of professional-grade heavy-duty steel so it delivers exceptional torque without bending, die head assembly provides 360 degrees of connector support for terminating modular plugs on stranded or solid cable Cable Tester & Replaceable Blade - Network Cable Tester for cables with RJ45/RJ11/RJ12 Connector (9V battery not included), Maintains razor sharpness, textured handle grips reduce hand fatigue and prevent slipping during cutting, stripping and crimping