Best Spline Screwdriver Bits of 2025

* We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.
Spline screwdriver bits are a specialized type of screwdriver bit that are designed to fit into a unique type of screw head that features a series of ridges or splines. These bits are often used in automotive and machinery applications where a high level of torque is required to tighten or loosen screws. Spline screwdriver bits come in a variety of sizes and shapes, allowing them to be used with a wide range of different screws. They are made from high-quality materials like chrome vanadium steel or S2 steel, which provides excellent durability and resistance to wear and tear.
At a Glance: Our Top Picks
Top 10 Spline Screwdriver Bits
Trlr/Rv Dblsq Bit 1/4"
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.
VEGA XZN Triple Square M8 Bits
The VEGA M8 Driver Bits come in a convenient three-pack, designed specifically for precision and durability. Their CNC machined tips ensure a perfect fit in fasteners, making your automotive tasks easier and more efficient. Made from S2 modified shock-resistant steel, these bits are built to last, providing reliability for professional use. Additionally, the bits undergo precision heat treatment, enhancing their durability and protecting against wear, so you can tackle even the toughest jobs with confidence.
BGS 4763 10mm Bit
The BGS 4763 Bit is a high-quality socket screwdriver bit designed for professional use. With its original BGS quality, you can trust that it will deliver reliable performance. The excellent price-to-quality ratio means you get great value without compromising on durability. This bit is specifically designed for spline (RIBE) screws, making it a convenient tool for various applications. Its professional-grade quality ensures that it can withstand the demands of tough jobs, making it a must-have in your toolkit.
Vigor V2067 Spline Screwdriver Bit
The Vigor Spline Screwdriver Bit is designed to tackle screws with internal serration, making it ideal for tight spaces and difficult work areas. With a square drive of 12.5 mm (1/2 inch) and an 8 mm spanner size, this tool provides versatility for various tasks. Its heat-treated construction balances strength and hardness, ensuring durability and reliability. You can trust this screwdriver bit to reach studs effectively, making your projects easier and more efficient.
SK Hand Tool 4042146356708 1/4" Bit Socket Spline (XZN) M7
This socket screwdriver bit features a spline (XZN) with an internal square drive to DIN 3120 / ISO 1174 with ball reception, making it easy to use manually. The press-fitted nickel-plated insert bit ensures durability and reliability.
BGS 4766 Bit
The BGS Bit 4766 is a 30 mm long drill bit made of durable chrome vanadium steel. It features a Spline profile designed for RIBE screws, specifically the M11 size. This design ensures a secure grip and precise torque when working with RIBE screws. The 10 mm (3/8") drive makes it compatible with a wide range of drills. The BGS Bit 4766 offers you reliability and efficiency in drilling tasks, allowing you to work with ease and accuracy.
SK Hand Tool 10 mm Bit Spline XZN, 30 mm
SK Hand Tool 10 mm Bit Spline XZN is a high-quality screwdriver bit that is widely used by customers in over 135 countries. The product is designed to provide convenience to users with a package height of 5.12 inches, a package length of 13.78 inches, and a package width of 9.84 inches.
CoCud M5 3/8" Impact Bit Socket
The CoCud M5 Impact Socket is designed for those who need a reliable tool for fastening and loosening screws and nuts. Its 3/8" drive size and 48mm length make it versatile for various applications, from automotive repairs to construction projects. The socket's head design enhances stability, ensuring a snug fit on fasteners, which helps you apply better rotational force. Made from durable S2 steel and CR-V materials, this socket can withstand high pressure and resist wear, providing longevity. The included hex shank adapter allows for easy connection to different tools, streamlining your workflow.
KS TOOLS 10mm Spline Bit
The KS TOOLS Spline Bit is a reliable addition to your tool collection, designed for convenience and efficiency. With a worldwide presence in over 135 countries, this brand is recognized for quality. The package dimensions are practical, measuring 5.12 inches in height, 13.78 inches in length, and 9.84 inches in width, making it easy to store and transport. This screwdriver bit falls into the category of essential tools for various applications, ensuring you have the right equipment at hand when you need it most. Experience the benefits of owning a tool from a reputable manufacturer.
Gedore INR 19 L 8-100 100mm Screwdriver Bit Socket 1/2"
The Gedore INR 19 L 8-100 Screwdriver Bit Socket is a versatile tool designed for multi-spline screws RIBE M8. It features a square drive with ball retaining groove, hand-operated knurled grip, and pressed-in pin made of Gedore vanadium special steel with a gun-metal finish. This tool comes in the screwdrivers category.
During our spline screwdriver bit research, we found 24 spline screwdriver bit products and shortlisted 10 quality products. We collected and analyzed 4,781 customer reviews through our big data system to write the spline screwdriver bits list. We found that most customers choose spline screwdriver bits with an average price of $12.28.
The spline screwdriver bits are available for purchase. We have researched hundreds of brands and picked the top brands of spline screwdriver bits, including Best Way Tools, VEGA Industries, BGS, Vigor, KS TOOLS. The seller of top 1 product has received honest feedback from 2,179 consumers with an average rating of 4.8.

Harry Stack owns a small hardware store, his career landed him a depth of knowledge in categories such as tools, equipment, machinery and hardware. In his spare time, he usually repairs furniture, safes and appliances, and he knows how to make simple repairs to plumbing or electrical fixtures. His hobbies also include woodworking and fishing.