High quality material: made of s2 alloy steel, heat-treated after forging, with high hardness and high torque.
this set is easy to insert smoothly and has precise chamfered drill bit ends, protecting the drill bit and fasteners from damaged edges and peeling.
excellent forging: high quality forging, forged through heat treatment, with excellent strength and durability.
the surface of each plum blossom drill bit is treated with anti-corrosion black phosphoric acid to prevent oil and rust.
dimensions include: plum blossom screwdriver sleeve dimensions include t10 t15、t20、t25、t27、t30、t35、t40、t45、t50、t55、t60 widely used: the star shaped set is very suitable for any machinery and is an essential product for cars, motorcycles, bicycles, lawn equipment, appliances, machinery, etc dedicated storage box: the laser markings on the plum blossom drill bit socket and the specification markings on the toolbox allow you to easily and quickly identify the desired socket.