OKNIFE MBS1 4mm Hex Bit Screwdriver Set, 9 PCS Durable S2 Tool Steel Double-Ended Bit Set with Eternal Pencil, Ideal for Opry, D1, U1 Pro Series and Other 4mm Hex Nut Drivers

Durable material for repeated use

Each 4mm double-ended bit is made from premium S2 tool steel, a material known for strong hardness and good wear resistance. This helps the bits stay reliable during regular use and gives the set a solid, long-lasting feel.

Nickel-plated finish for added durability

The nickel-plated surface adds another layer of durability and helps support long-term performance. It also gives the bits a cleaner and more refined finish.

One set, more everyday flexibility

The MBS1 includes 9 double-ended bits, giving you 18 usable tips in one compact set. It covers a practical range of sizes for repair work, adjustment tasks, and daily carry needs.

Included bit combinations

T1 + Triangle 2.3, PH00 + PH2, PH0 + SL3.5, SL1.5 + SL2, H2.5 + H3, H1.5 + H2, T10 + T15, T7 + T9, and T6 + T8.

Made for carry tools and compact drivers

This bit set is ideal for the Opry Series, D1 Series, and U1 Pro Series. It is also compatible with other 4mm hex nut drivers, making it a flexible option for users who already carry compact repair tools.

A reusable tool for writing and marking

Unlike a typical bit set, the MBS1 also includes an Eternal Pencil. It is reusable, does not need sharpening, and adds extra utility for quick notes, marking, or light writing tasks during work.