Diamond Series Screwdrivers

BOSI's Diamond Series screwdrivers are made with chromium-molybdenum steel (Cr-Mo) shanks with a mirror-finish bright chrome plating, making them aesthetically pleasing and rust-resistant. The bits have strong magnets that easily attract small screws, improving work efficiency. The unique handle design is ergonomic, providing a comfortable grip and reducing fatigue during extended use. Durability is 30% higher than ordinary screwdrivers.

Available in flathead and Phillips head sizes, with diameters including Φ3mm, Φ5mm, Φ6mm, and Φ8mm, and lengths ranging from 75mm to 300mm. Standards: Single-line QB/T2564.4, Phillips head QB/T2564.5. Widely used in electronic repair, electrical wiring, mechanical assembly, home decoration construction and other scenarios.

Product Specifications

Product Advantages

Chromium-Molybdenum Steel Tool Shaft: Made of Cr-Mo alloy steel, Diamond Series Screwdrivers have higher torsional strength and wear resistance than ordinary carbon steel, increasing durability by 30%.

Mirror Polished Chrome: The blade surface is mirror polished and chrome plated, rust-proof and corrosion-resistant, easy to clean, and has an exquisite appearance.

Strong Magnet for Bits: The head has a strong magnetism that can easily attract small screws, reducing the risk of falling and improving assembly efficiency.

Unique Handle: Ergonomic design, comfortable grip, non-slip, and efficient torque transmission, preventing hand chafing during long-term use.

Full range of specifications: four diameters from Φ3-8mm, six lengths from 75-300mm, flathead/Phillips head types, covering most screw assembly and disassembly needs.

Execution Standard: Strictly follows QB/T2564.4 (flathead) and QB/T2564.5 (cross-head), ensuring reliable quality.

Quality Assurance

The "30% increase in durability" of BOSI Gold Diamond series screwdrivers is not a slogan, but a practical verification based on chromium molybdenum steel material and heat treatment process: under laboratory conditions, torque tests were conducted on screwdrivers of the same specifications, and the maximum destructive torque that the Gold Diamond series can withstand was more than 30% higher than that of ordinary carbon steel products, and the anti slip performance of the cross groove on the screwdriver head was significantly better than that of competitors.

Batch procurement can provide material testing reports and torque testing data. In terms of after-sales service, the batch head can be replaced for free once if it is not artificially worn out. Choose Persia to improve your homework efficiency with professional level tools.

FAQ

Q: What to do if the magnetism of the bit weakens? 

A: Magnetizing the bits can be done with a magnetizer; if no magnetizer is available, the bits can be restored to magnetism by repeatedly rubbing them with a strong magnet. Avoid storing near high temperatures or strong alternating magnetic fields.

Q: What is the difference between chromium-molybdenum steel and chromium-vanadium steel? 

A: Chromium-molybdenum steel (Cr-Mo) contains molybdenum, has strong resistance to tempering and softening, and is suitable for manufacturing slender tool holders with superior torsional resistance; Chromium-vanadium steel (Cr-V) has good toughness and is commonly used in sockets and wrenches. Screwdriver holders prioritize torsional resistance, hence Cr-Mo is chosen.

Q: How to choose the appropriate length? 

A: Choose a long handle (150-300mm) for deep holes or inside chassis; choose a short handle (75-100mm) for ordinary panels and sockets. Long handles are more adaptable to various scenarios, but short handles are easier to apply force with.

Q: Will the mirror chrome plating peel off? 

A: Normal use will not cause damage. Avoid scratching with hard objects or contact with strong acids or alkalis. If the detachment is due to a manufacturing defect, please contact after-sales service for a replacement.