Best Spline Screwdriver Bits of 2026

The J&R 11pc Spline Socket Set is crafted from durable chrome vanadium steel, ensuring strength and long-lasting use for your projects. The 10mm hex shank design provides a secure fit in your drill or driver, making your work more efficient. This set includes bits in two convenient lengths, 75mm and 30mm, covering sizes M5 through M12, so you have the right tool for various tasks. Plus, it comes with a plastic blow mold case that keeps everything organized and easy to carry, helping you stay prepared wherever you go.

The VEGA XZN M10 Driver Bits offer precision-engineered tips made with CNC machining, ensuring a perfect fit in your screws for less slipping and better control. Crafted from durable S2 modified shock-resistant steel, these bits are built to handle tough jobs without breaking. The heat treatment process enhances their strength and wear resistance, so you can rely on them for long-term use. Whether you're working on automotive repairs or other projects, these bits deliver professional-level performance and durability for your convenience and efficiency.

The K Tool Spline Socket is designed to handle multiple types of fasteners, including spline, 6-point, 12-point, female torx, and square. This versatility means you can use one tool instead of carrying several sockets, saving you time and effort. It even fits fasteners that are half rounded, giving you more flexibility when tackling worn or damaged bolts. The socket features a high-polish chrome-vanadium finish, which helps protect against rust and wear, ensuring the tool lasts longer and stays reliable throughout your projects.

This Trlr/Rv Dblsq Bit 1/4" is a socket screwdriver bit that features an 8 spline, double square head type, 1/4" shank diameter, 1" bit length, and spline screwdriver bit type. It is useful for those who need a durable and reliable screwdriver bit to use for their socket screws.

The HAZET Socket Wrench features a 1/2 inch square drive for easy fitting, a spline socket robe-cv output for secure fastening, and a wrench size of M10 for versatile use. This tool simplifies your tasks by providing a reliable grip, ensuring precise tightening, and compatibility with various M10 fasteners. The HAZET Socket Wrench is a must-have for DIY enthusiasts and professionals alike, offering efficiency and convenience in your projects.

The Skweawert Impact Socket is designed with a 1/2 inch drive and a 12mm hex bit, providing a perfect fit for various tasks. Crafted from high-quality chrome molybdenum steel, it ensures long-lasting durability and resistance to rust, so you can rely on it for tough jobs. The socket features a special pinhole and chamfered edges, allowing smooth and secure attachment to your tools, which helps prevent slipping and reduces wear on your bits and fasteners. Plus, the clear, screen printed size markings make it easy for you to quickly find the right adapter without worrying about fading labels.

The Hazet M8 Spline Socket is designed with a 1/2-inch hollow square drive, making it easy for you to attach and detach from your wrench or ratchet. This feature ensures a secure fit and smooth operation during use. The socket’s spline Ribe-Cv output is perfect for working with spline screws, giving you precise control and reducing the chance of slipping. With its M8 size, it fits medium-sized fasteners, making it versatile for various mechanical tasks. This socket screwdriver bit is a reliable tool for anyone needing accuracy and convenience in fastening jobs.

The Shkalacar Hex Torx Bit Set offers quick and easy bit changes thanks to its uniform 12mm hex base design, saving you time whether you're working at home or on a job site. Made from durable alloy steel, these bits provide strong performance and long-lasting use for heavy-duty tasks. The set includes 40 bits covering hex, torx, and spline types, plus two drive sockets (3/8" and 1/2"), giving you the tools needed for various fastening jobs. Each bit is marked clearly with its size, so you can quickly find the right one without any hassle, making your work more efficient and organized.