Professional Tool Set Factory Direct Supply

BOSI Tools is a tool set supplier from China, offering the 94-piece set of 6.3mm+12.5mm series metric socket set and the 79 pieces of multifunctional lithium drill set. From lithium drills and sockets to multimeters and voltage testers, BOSI integrates essential tools into portable blow-molded cases, providing a one-stop solution for home repair, automotive maintenance, and professional installation.

We can offer selection advice and customized solutions based on actual working conditions. Feel free to contact us at any time.

What Is a Tool Set?

A tool set is not a single tool but a solution that systematically integrates multiple functionally complementary tools into one storage unit, organized around a specific work scenario.

The BOSI 79 pieces of multifunctional lithium drill set is built around a 12V two-speed lithium drill as its core, paired with 79 components including sockets, screwdriver bits, wire strippers, a multimeter, a voltage tester, a Fiberglass Handle Claw Hammer, and a Utility knife. This combination covers the entire home maintenance workflow, from drilling and screw fastening to circuit testing, cutting, and wire stripping.

The 94-piece set of 6.3mm+12.5mm series metric socket set is structured around dual-series 6.3mm and 12.5mm metric sockets, spanning 31 specifications from 4mm to 32mm, supplemented by deep sockets, extension bars, screwdriver bits, hex keys, and a ratcheting screwdriver handle, specializing in bolt fastening and removal for automotive repair and mechanical assembly.

Both sets use blow-molded cases as their storage medium, where every tool has a designated slot, enabling convenient access and easy inventory checks.

Our Tool Sets vs. Other Brands: Why Choose BOSI?

BOSI tool sets employ a configuration logic of full-specification socket coverage and a core power tool paired with digital instruments. By substituting piecemeal purchases with a one-stop bundled procurement, they reduce the cost of assembling kits and minimize the risk of tool incompatibility for the user.

How to Choose the Right Tool Set?

The selection logic depends on the nature of the work.

For comprehensive scenarios like daily home repair, circuit testing, and furniture assembly, the 79-piece set, with its lithium drill at the core paired with testing instruments and cutting tools, covers most common problems in one case.

For automotive repair and mechanical assembly, the 94-piece dual-series socket set, spanning from 4mm to 32mm and combined with extension bars and screwdriver bits, can reach bolts at various depths and angles. The clearly marked blow-molded case prevents disarray during collaborative work.

The two sets are complementary—the 79-piece set handles drilling, testing, and cutting, while the 94-piece set handles the socket system, forming a complete tool chain from home to workshop.

Safety Precautions for Use

Lithium Drill Module

Before use, ensure the battery is clicked into place and locked. Set the two-speed gear to match the material before starting. Always remove the battery before changing a drill bit to prevent accidental activation.

Use only the original charger for recharging, and do not leave the battery on float charge for extended periods.

Sockets and Extension Bars

Socket size must perfectly match the bolt; a loose fit will round off bolt corners and cause damage.

When connecting an extension bar, ensure the square drive is fully inserted into the socket's square hole and the spring-loaded detent ball pops out to lock it.

Never insert other tools between the socket and extension bar to increase leverage.

Testing Instruments

Before taking a measurement with a digital multimeter, confirm the correct mode—measuring voltage while in current mode will blow the fuse or even damage the meter.

Before using a digital voltage tester, test it on a known live outlet to verify function, then proceed to test the target circuit.

Cutting and Bladed Tools

When using wire pliers, pointed nose pliers, or wire strippers, keep fingers away from the cutting edges.

When stripping wire, adjust the stripper jaws to the correct wire gauge slot, and do not use the plier jaws to cut steel wire or nails.

When changing blades on a Utility knife, point the blade ejection direction toward an unoccupied area, and retract the blade immediately after use.

Storage Environment

Do not leave blow-molded cases in prolonged high-temperature exposure or strong acid/alkali environments to prevent plastic aging and brittleness.

Store the lithium drill and instruments in a dry place to prevent moisture damage to circuits.

Regularly wipe sockets and bladed tools with anti-rust oil, increasing the maintenance frequency especially during humid seasons.

What Materials Can Be Processed?

BOSI tool sets can handle the following materials and repair scenarios:

Wood and Wood-Based Panels

The 79-piece set’s lithium drill, combined with 2/3/5/6mm twist drill bits, can drill into pine, beech, plywood, and particleboard.

The mini saw frame with a 6" blade can cut decorative moldings, PVC pipes, and small-section wood studs.

Brick Walls and Ceramic Tiles

A 6mm ceramic hole saw can drill mounting holes in tile surfaces; start slowly and use water for cooling.

For brick wall drilling, use the 12V hammer function to assist, with the depth limited to the installation of expansion anchors.

Metal and Sheet Metal Parts

The 94-piece set's 6.3mm and 12.5mm sockets cover M4 to M32 bolts. Hex bolts on carbon steel sheet metal parts can be directly removed and installed using the dual-series sockets with extension bars. Screwdriver bits and hex keys cover countersunk head and hex socket screws.

Electrical and Cable Work

The lightweight wire stripper strips insulation from 0.5-6mm² electrical wires. European style wire pliers and European style pointed nose pliers can bend wire ends and cut thin copper wire.

The digital multimeter measures AC/DC voltage, resistance, and continuity, while the voltage tester identifies live wires and provides non-contact voltage detection.

General Assembly and Disassembly

The Fiberglass Handle Claw Hammer can be used for striking and nail pulling. An 8" adjustable wrench works with sockets for non-standard nuts. The Utility knife cuts soft materials like cardboard, carpet, and packing straps.

Together, the two sets cover common materials encountered in home repair, automotive maintenance, and on-site installation.