Spline Socket Set 21 pcs, 12-angle, AWTools Black Line

AWTools Spline Socket Set 21 pcs, 12-angle, Black Line is a 21-piece collection of 12-angle spline sockets designed for fastening and loosening spline fasteners in workshop and maintenance environments. The set covers a practical range of sizes to work with common spline fittings and is compatible with standard drive ratchets and extensions used in automotive repair, machinery service, and general mechanical work.

Advantages

The 12-angle spline profile provides multiple contact points for secure engagement with spline fasteners, reducing the risk of rounding or cam-out. The set includes a broad selection of socket sizes to match a variety of spline heads, allowing fast adaptation to different tasks. Manufactured to Black Line styling from the brand, the sockets are suited to repeated workshop use and integrate with standard ratchet and extension accessories for increased reach and leverage.

Suitable for

• Automotive repair and maintenance involving spline fasteners
• Machinery service and assembly/disassembly of mechanical components
• General mechanical work and workshop maintenance where spline fittings are present

Key specifications

• Number of pieces: 21
• Drive type: compatible with standard ratchet drives and extensions
• Spline profile: 12-angle spline geometry
• Finish: Black Line surface styling
• Application: designed for use on spline fasteners in mechanical and automotive contexts

How to use

Select the socket that matches the spline fastener size, mount it onto a compatible ratchet or extension, and engage the socket fully onto the fastener. Apply steady turning force while maintaining alignment to avoid slippage. For tightening, use appropriate torque values for the application; for loosening, apply controlled force and consider using penetrating lubricant for seized fasteners.

Usage recommendations

Use sockets with the correct drive size and avoid using damaged sockets or worn fasteners. Store the set in its case to protect individual sockets from corrosion and damage. When working on critical torque joints, verify fastener torque with a calibrated torque wrench after initial tightening with the spline socket and ratchet.