BOSI Tools is a tool storage system supplier from China, offering a product range that includes the Eight drawer cabinet shaped tool cart, Seven drawer tool cart, Second floor portable toolbox, and Multi functional toolkit.
Featuring 1.2mm cold-rolled steel sheet with a sand-finish coating, premium waterproof Oxford fabric, and a 60kg actual load capacity, BOSI provides professional-grade tool storage solutions for workshops, construction sites, and mobile operations through solid materials and reliable structures.
We offer one-on-one selection guidance and customization services. Inquiries by phone or online are welcome.
The BOSI tool storage system does not rely on electrical power or mechanical transmission; its core lies in the integration of material mechanics and structural design.
The tool cart is fabricated from 1.2mm thick cold-rolled steel sheet through bending, stamping, and welding.
The body disperses stress through a reinforcing rib structure, working in conjunction with heavy-duty dual-brake casters to achieve both flexible push-pull mobility and stable parking.
The drawer system uses ball-bearing slides or steel plate slides, which uniformly transmit the dead weight of the drawer and the tool load through the rails to the cabinet frame.
The rated load per drawer ranges from 35kg (for the seven-drawer model) to 45kg (for the eight-drawer platinum model), with the overall rated load reaching 400kg to 450kg.
The sand-finish surface treatment forms a dense coating through electrostatic spraying and high-temperature curing, providing triple protection against scratches, solvents, and rust.
The second-floor portable toolbox relies on a tightly integrated lid and body structure for load bearing, with a well-designed torque ratio on the movable handle for easy carrying.
The multifunctional toolkit adopts a circuitous stitching technique at stress points, distributing the load to anti-slip steel double D-rings and the overall thickened Oxford fabric structure, achieving a verified load capacity of 60kg.
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Selection Dimension |
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Material & Structure |
Premium waterproof Oxford fabric, thickened and wear-resistant, anti-slip steel double D-rings, circuitous stitching at stress points |
Cold-rolled steel sheet with fine sand-finish surface, tightly integrated lid and body, movable handle |
1.2mm cold-rolled steel sheet, sand-finish surface resistant to scratches, solvents, and rust, heavy-duty dual-brake casters |
Platinum series cold-rolled steel sheet, 45kg load capacity per drawer, 450kg overall rated load |
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Capacity & Load |
Three sizes from 15"-19", 60kg load capacity |
450×200×195mm, compact and portable |
680×458×860mm, 35kg per drawer, 400kg overall |
1070×461×1032mm, 45kg per drawer, 450kg overall |
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Recommended Scenarios |
Electrician inspections, equipment maintenance, carrying tools at height |
Home tool storage, portable repair order box |
Auto repair shops, factory teams, large equipment maintenance |
High-end service stations, precision instrument workshops, centralized management of bulk tools |
The selection logic depends on the quantity of tools and mobility needs.
For daily inspections and elevated work, the toolkit is lightweight and portable, available in three sizes from 15" to 19" to be selected based on the number of tools.
For a small number of tools at a fixed location, the second-floor portable toolbox is compact and robust.
For workshop teams or service stations needing centralized management of a large number of tools, the seven-drawer tool cart offers flexible push-pull mobility with dual-brake casters, while the eight-drawer cabinet cart meets high-end demands with greater drawer load capacity and total volume.
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Common Problem |
Cause Analysis |
Solution |
Corresponding BOSI Design |
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Drawer slide jamming or derailing |
Overloading or dust and debris buildup inside the slide |
Clean debris from the slide and check that the rated load is not exceeded |
Seven-drawer model rated at 35kg per drawer, eight-drawer model at 45kg per drawer, cold-rolled steel structure strictly adheres to load limits |
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Toolkit shoulder strap breakage or thread detachment |
Overweight use or stitching wear |
Use within the 60kg rated load range, inspect the D-ring stress points |
Anti-slip steel double D-rings, circuitous stitching technique at stress points for stronger seams |
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Rust on tool case/cart paint surface |
Long-term storage in damp environments, unaddressed scratches |
Keep storage dry, apply anti-rust paint after paint surface scratches |
Sand-finish surface provides strong resistance to scratches, solvents, and rust |
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Caster lock failure and slipping |
Brake pad wear or caster deformation |
Check dual-brake caster pad wear and replace if necessary |
Heavy-duty dual-brake casters, strong locking, flexible push-pull |
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Loose lid hinge |
Screws loosening from long-term opening and closing |
Check hinge screws and re-tighten |
Tightly integrated lid and body, durable and sturdy movable handle |
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Comparison Dimension |
BOSI Tool Storage System |
Same-Price Generic Brands |
Imported High-End Brands |
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Steel Plate Thickness & Load |
1.2mm cold-rolled steel sheet for tool carts, seven-drawer overall load 400kg, eight-drawer per-drawer load 45kg |
Thin plates below 0.8mm, exaggerated load capacity, actual load capacity under 100kg |
Solid materials, but 2-3 times more expensive for the same specifications |
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Surface Treatment |
Sand-finish surface, strong resistance to scratches, solvents, and rust |
Ordinary spray paint, rusts and peels within six months, poor solvent resistance |
Mature powder coating, but high maintenance costs |
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Toolkit Material & Load |
Premium waterproof Oxford fabric, thickened and wear-resistant, tested 60kg load, circuitous stitching at stress points |
Ordinary Oxford fabric, thin and soft, shoulder strap stitching prone to breaking |
Sufficient materials but high brand premium |
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Mobility & Locking |
Heavy-duty dual-brake casters, strong locking, flexible push-pull |
Single-brake or no-brake casters, difficult to push under load |
Good industrial caster quality, but expensive replacement parts |
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Warranty Commitment |
Tool carts warrantied for 12 months (excluding casters), compliant with QB/T4400 standard |
No clear warranty, no after-sales support |
Comprehensive warranty system, but long factory return turnaround time |
The BOSI tool storage system ensures cart durability with 1.2mm cold-rolled steel plate and a sand-finish anti-rust surface, and guarantees toolkit load capacity with waterproof Oxford fabric and a circuitous stitching technique. It establishes clear advantages over generic brands in material, load capacity, and warranty dimensions, making it a reliable storage choice for workshops and mobile operations.
Strictly adhere to rated load capacities—Seven drawer tool cart per drawer 35kg, overall 400kg;
Eight drawer cabinet shaped tool cart per drawer 45kg, overall 450kg;
Multi functional toolkit load capacity 60kg.
Overloading will lead to drawer slide deformation, caster damage, or toolkit stitching breakage.
Before moving the tool cart, ensure all drawers are fully closed and locked to prevent them from sliding out and causing injury. When parking, fully lock the dual-brake casters and check that the cart is not sliding before starting work.
A fully loaded tool cart requires two people working together to push it, controlling speed to avoid collisions.
Place heavier tools in the bottom drawers to lower the cart's center of gravity, storing lightweight parts in the top drawers.
In the toolkit, place heavy items at the bottom of the main compartment and distribute weight evenly among subsidiary pockets to avoid unbalanced single-shoulder loads.
Store long-term in a dry and ventilated place to prevent steel plate rusting or Oxford fabric mildew due to moisture. Although the sand-finish surface has anti-rust capabilities, mechanical scratches on the paint surface should still be promptly treated with anti-rust paint.
Keep the toolkit away from sharp objects; the waterproof Oxford fabric is splash-proof but must not be submerged in water.
Monthly, check the smoothness of the drawer slides and apply a small amount of grease; check all connecting screws and caster brake pads for tightness.
Quarterly, inspect the toolkit stitching and D-ring stress points, mending any loose threads promptly. Lubricate the case hinges and movable handle parts with oil to prevent rust.
Do not drop the toolbox or tool cart or allow them to slide from heights. Although solid, cold-rolled steel sheet may suffer structural deformation and drawer jamming upon severe impact.
Before using the toolkit's diagonal shoulder strap, check the integrity of the hook and stitching; manual support is recommended for hand-carrying when under heavy load.