US PRO 7589 10pc 1/2" Drive Impact Spline Bit Socket Set (M4–M18 Tamper-Resistant)

The US PRO 7589 10 Piece 1/2" Drive Impact Spline Bit Socket Set is engineered for high-torque fastening tasks where security and durability are critical. Designed around European-style spline fasteners, this set is ideal for automotive, commercial vehicle, and industrial applications where tamper-resistant fixings are commonly used.

Each socket body is manufactured from chrome vanadium (CR-V) steel, providing excellent structural strength, while the S2 steel spline bits deliver superior hardness and resistance to twisting under impact loads. The combination ensures reliable performance when used with impact wrenches, breaker bars, or high-torque ratchets.

A phosphate finish enhances corrosion resistance and surface durability, helping the set withstand harsh workshop environments. Supplied neatly in a storage tray, the sockets remain organised and easily accessible in tool drawers or trolleys.

Covering sizes from M4 to M18, including tamper-resistant variants, this set offers comprehensive coverage for modern vehicles and machinery using spline fasteners.

Key Features & Benefits

• 10-piece impact spline bit socket set

• 1/2" square drive

• European-style spline profile

• Includes tamper-resistant spline sizes

• CR-V steel sockets for strength

• S2 steel bits for impact durability

• Phosphate finish for corrosion protection

• Supplied in a storage tray for organisation

• Designed for impact tool use

Sizes Included

M4, M5, M6, M8, M9, M10, M12, M14 (Tamper), M16 (Tamper), M18 (Tamper)

Specifications

• Brand: US PRO

• SKU: 7589

• Set Size: 10 pieces

• Drive Size: 1/2"

• Bit Type: Spline (European style)

• Tamper-Resistant: Yes (selected sizes)

• Socket Material: Chrome Vanadium (CR-V)

• Bit Material: S2 steel

• Finish: Phosphate

• Storage: Supplied in storage tray

• Application: Automotive, industrial, workshop, security fasteners