170-in-1 CRV Steel Screwdriver Set with Insulated Chrome Vanadium Steel Blades

This 170-in-1 screwdriver set is built around chrome vanadium steel blades and handles, with a nickel-plated blade surface treatment and an insulated construction. It is supplied as one complete piece, so the set stays together as a single kit for repeated fastening tasks. The stated cutter head specification is 4mm and the cutter bar length is 28mm, giving a compact working end for precision and general tightening. Colour options include black and blue, black and red, black and yellow, black and gray, black and orange, and black and purple. The set is aimed at users who want one organised tool kit rather than a collection of separate screwdrivers. Because the source data lists only the 4mm cutter head and 28mm bar length, no further bit sizes or piece counts can be confirmed.

Features and Construction

The construction focuses on a chrome vanadium steel blade and handle, a nickel-plated blade surface, and an insulated design. These details support a tool set intended for regular handling and for tasks where electrical contact is a consideration. The 4mm cutter head and 28mm cutter bar length are the key measurable specifications. The set is supplied as one piece, keeping the components together for storage and transport.

Material and Build

The blade and handle are both stated as chrome vanadium steel, a material commonly chosen for screwdriver bits and bars because it holds shape under turning force. The blade surface is nickel-plated, which is a coating used to help limit corrosion during storage and handling. The insulated construction adds a layer intended to support use where electrical contact is possible. These are the stated material facts, and no additional hardness ratings, torque figures, or lifespan claims are provided.

Size and Practical Fit

The cutter head specification is 4mm, which is a small working end suited to precision fastening and light tightening. The cutter bar length is 28mm, giving a short bar that can reach into confined spaces where a longer tool would not fit. Together, these dimensions define the practical fit of the set. No other bit sizes, bar lengths, or overall case dimensions are stated in the source data, so the full size range cannot be confirmed beyond these two measurements.

Uses and Placement

The set is suited to tasks that call for a compact insulated screwdriver with a 4mm cutter head. It can be kept in a toolbox, drawer, or workshop area as a single organised kit. The colour options allow the set to be matched to a preference or identified easily among other tools. The insulated design and chrome vanadium steel construction are the main practical points for everyday use.

Event or Professional Use

For professional or trade settings, the 170-in-1 set offers a single kit that covers fastening tasks with a 4mm cutter head and 28mm bar length. The insulated construction supports use where electrical contact is a consideration, and the nickel-plated blade surface helps resist corrosion between jobs. The chrome vanadium steel blade and handle provide a solid tool body for repeated handling. No certification, voltage rating, or professional standard is stated, so these details should not be assumed.

Everyday Home Use

At home, the set is useful for small repairs, furniture assembly, and general tightening where a 4mm cutter head fits the fastener. The 28mm cutter bar length helps in tight spots, such as recessed screws or narrow gaps. The set is supplied as one piece, which makes it easy to keep in a kitchen drawer, cupboard, or utility area. The insulated design is a practical detail for tasks around electrical fittings, provided the insulation is checked before use.

Benefits and Buying Value

The main buying value comes from having a single 170-in-1 set with insulated chrome vanadium steel tools, a nickel-plated blade surface, and a stated 4mm cutter head and 28mm bar length. These features support repeated use and organised storage. The colour choices add a practical way to identify the set. No price, savings, or competitor comparisons are provided, so value should be judged on the stated construction and coverage alone.

Reuse and Low Maintenance

Chrome vanadium steel blades and handles are designed for repeated fastening tasks, and the nickel-plated surface treatment helps limit corrosion when the set is stored dry. Keeping the set in a case or holder reduces exposure to moisture and abrasion. The insulated construction should be inspected before use where electrical contact is possible, and the tool should be replaced if the insulation is damaged. These are low-risk maintenance steps based on the stated materials, not specialist care instructions.

Why Choose This Product

Choose this set if you need a compact insulated screwdriver kit with a 4mm cutter head, a 28mm cutter bar length, and chrome vanadium steel blades and handles. The 170-in-1 format is supplied as one piece, so it stays together for storage and transport. Colour options include black and blue, black and red, black and yellow, black and gray, black and orange, and black and purple. The stated facts cover the material, insulation, blade treatment, and two measurements, and no further specifications should be assumed.