Spline Bit Socket Set M4-M10 7pc 110mm Extra Long 3/8in Drive

A 7-piece spline bit socket set for use with a 3/8in drive ratchet, covering sizes from 4mm to 10mm. The 110mm extra long pattern makes it useful when working on fixings that sit deeper in housings or are harder to reach directly.

Used for vehicle maintenance and workshop jobs where access is tight, this set suits tasks such as gearbox work, suspension repairs, back axle jobs, brake servicing, cylinder head removal and headlight alignment. It is also handy for awkward recessed fixings where a standard length spline bit may not give enough reach. For mechanics, garage users and anyone carrying out regular servicing, the longer bits help when fasteners are set back behind surrounding components.

This spline bit set includes seven metric sizes, covering common spline fasteners from 4mm through to 10mm. The bits are made from chrome vanadium steel for regular workshop use. The 3/8in drive fit works with common ratchets and extension bars already used in many tool kits, helping avoid unnecessary switching between separate tool types during regular repair work. The extra length is especially useful where trim, brackets or surrounding parts limit direct hand access to the fixing.

Spline bit socket set specifications

• Contents: 7-piece spline bit socket set.
• Size range: Covers metric sizes 4mm, 5mm, 6mm, 7mm, 8mm, 9mm and 10mm.
• Length: 110mm extra long bits for deeper or more recessed fixings.
• Drive fitment: 3/8in drive for use with standard 3/8in ratchets and related accessories.
• Application: Useful for gearboxes, suspension, back axles, brake servicing, airbag release, headlight alignment and cylinder head removal.
• Sizes: Includes 4, 5, 6, 7, 8, 9 and 10mm spline bits, all 110mm long.

A practical choice for regular maintenance and repair work.