12-piece set includes 0.028-5/32 inch (SAE) hex and M3-M4 triple square (XZN) 4 mm bits. Comes with flexible bit rail that securely grips the bits.
Features:
Precise Tip Geometry and Stamped Markings: Tekton 4 mm bits are made with tight tolerances for a secure fit in small screws, reducing slip and wear-crucial for high-value, sensitive electronics.
Hardened Bits with Non-Flaking Protective Finish: The bits are made from hardened 8660 steel (55-58 HRC)* and finished with a zinc phosphate conversion coating that provides lasting corrosion resistance without altering dimensions or flaking, unlike chrome finishes.
Bit Rails Have a Soft, Secure Hold: The flexible rails securely grip the bits so they can't fall out, while also making it easy to remove any bit one-handed. The rails can also stand upright on a flat surface, making the markings easier to see.
We offer flexible shipping and scheduling options, up-to-date delivery estimates, and free ground shipping on any order over $99 to make sure your order gets to you on-time, for less.
Ordered the wrong product? Item damaged in transit? Our 3-step process makes returning products easy – even up to a year after purchase – with no restocking fees on returns made within 90 days.