Triple Square Bit Set, 20-Piece Set, Spline Socket Set, Extra Long 4”

Model: 10057A

Triple Square Bit Set, 20-Piece Set, Spline Socket Set, Extra Long 4”

Product Overview

If you've worked on European vehicles, you've met triple-square fasteners — and you know that regular Torx bits won't cut it. This 20-piece XZN set covers 4 mm through 18 mm in both standard and extra-long 4" lengths across 1/4", 3/8", and 1/2" drives.

Purpose-Built for XZN Fasteners 12-point triple-square (spline) bits are engineered specifically for tamperproof and standard XZN fasteners found in cylinder head bolts, engine components, and drivetrain assemblies.

S2 Steel Bits, CrV Sockets S2 alloy steel bits for hardness and longevity. Chrome vanadium sockets with mirror chrome finish deliver smooth torque transfer.

Standard & Extra-Long Lengths 10 standard bits and 10 extra-long 4" bits for reaching deep-set fasteners. Chamfered ends for smooth insertion without edge damage.

What's Included

• 20 triple-square bit sockets (4–18 mm)
• 1/4", 3/8", and 1/2" drive sizes
• Tamperproof and standard configurations
• Organizing storage case