【Ball end allen wrench set】: 6pcs hex key allen wrench set,we have multiple sizes for your choice;ball head end is the savior of narrow spaces,allowing you to easily tighten screws without the need for perfect alignment 【Dimension】Hex Size :4mm. 【Premium material】: Our ball end allen wrench set is made from high-strength CR-V steel material,sturdy for use,its hardness and toughness far exceed ordinary carbon steel;Rust and corrosion prevention,strong bending and wear resistance 【Ball head design】: Both ends of hex key allen wrench are professional designed-the ball end allows for easy screwing of screws at a maximum angle of 25 degrees,making it particularly suitable for operation in narrow or concealed spaces;The other end is a standard hexagonal end,providing maximum torque for quick tightening or loosening 【L shaped】: The elongated L-shaped arm provides better leverage, making it easier for you to twist and apply greater torque; The comfortable touch reduces pressure on the palm,making it less prone to fatigue even after prolonged use 【Widely Use】: Perfectly adapted to the daily maintenance and repair needs of furniture assembly,bicycle repair, motorcycle,car, electrical appliances,3D printers and various mechanical equipment

4mm Allen Wrench Set with Ball End Hex Key Metric Size Long Arm L Shaped Heavy Duty CRV Steel Tool for Repairing Project 6PCS