Socket bit Spline 1/2" M5 x 100 mm long — NEO tools 08-740

Long spline socket bit for 1/2" drive, size M5 and 100 mm length by NEO tools. This tool is engineered to transfer torque precisely to M5 spline-head fasteners while providing extended reach for recessed or deep-set screws. The 1/2" square drive interface makes it compatible with hand ratchets and with power tool adapters that accept 1/2" drives, allowing use in automotive, mechanical maintenance and assembly operations where access and accurate engagement are required.

Advantages

The long 100 mm shaft allows access to fasteners located in narrow or deep cavities without sacrificing control. Spline geometry ensures even torque distribution across the fastener profile, reducing the risk of rounding and slippage. The 1/2" drive interface offers broad compatibility with common ratchets and adapters, while the solid construction provides durability under repeated use.

Suitable for

• Automotive repair and under-hood maintenance requiring reach to recessed spline fasteners
• Mechanical assembly and disassembly where M5 spline screws are used
• Maintenance tasks in machinery and equipment with limited access to fasteners

Key specifications

• Drive size: 1/2" square drive
• Tip profile: spline for M5 fasteners
• Overall shaft length: 100 mm
• Material and heat treatment: hardened tool steel (manufacturing standard for impact and wear resistance)

How to use

Select a compatible 1/2" ratchet or adapter and secure the spline bit into the drive. Insert the spline tip into the M5 spline-head fastener, ensuring full engagement of the profile to avoid cam-out. Apply steady torque while maintaining alignment between the tool and fastener; for removal start with counter-clockwise rotation and for fastening use clockwise rotation. Inspect the bit and fastener before and after use and replace the bit if the tip shows signs of rounding or excessive wear.

Usage recommendations

Use appropriate torque settings on power tools and prefer manual ratchet control when working on delicate assemblies. Keep the bit clean and free of debris, and store it in a dedicated holder to prevent tip damage. When working in tight spaces, use extension adapters rated for the applied torque to avoid tool or fastener damage.