Jonnesway screwdriver bit SPLINE XZN M8×75mm 6-point 10mm D10M75M08A

Jonnesway screwdriver bit SPLINE XZN M8×75mm (model D10M75M08A) is a purpose-built 6-point spline XZN bit for use with fasteners that require precise spline engagement. With a working length of 75 mm and a 10 mm shank diameter, this bit fits standard 10 mm bit holders, ratchets and compatible impact drivers. It is designed to transfer torque accurately to spline head screws commonly found in automotive, mechanical and maintenance applications, reducing cam-out and ensuring consistent contact between the driver and the fastener.

Advantages

The SPLINE XZN M8 bit provides accurate multi-point engagement with spline fasteners, improving torque distribution and minimizing damage to screw heads. Its 75 mm length offers extended reach for recessed or obstructed fasteners while the 10 mm shank enables compatibility with a wide range of bit holders and quick-change adapters. The six-point design reduces slippage compared with standard Phillips or slotted bits and is suitable for repeated use in professional environments.

Suitable for

• Automotive repair tasks involving spline XZN M8 fasteners
• Mechanical assembly and disassembly where precise torque transfer is required
• Maintenance and service work on equipment with 6-point spline heads
• Use with hand ratchets, bit holders and compatible impact drivers accepting 10 mm bits

Key specifications

• Bit type: SPLINE XZN 6-point
• Size: M8 spline
• Working length: 75 mm
• Shank diameter: 10 mm
• Compatibility: standard 10 mm bit holders, ratchets and impact drivers

How to use

Select the SPLINE XZN M8 bit and insert the 10 mm shank into a compatible bit holder, quick-change adapter, ratchet or impact driver. Align the spline tip with the corresponding M8 fastener and apply steady axial pressure while turning to engage the six-point profile. For best results, ensure the bit is fully seated in the fastener before applying high torque. Inspect the bit and fastener for wear after repeated use and replace if profiles become rounded.

Usage recommendations

Use this bit with the appropriate torque-rated tools and avoid excessive side load. For impact driver use, verify that the tool accepts hardened 10 mm bits. Store the bit in a dry place to prevent corrosion and verify compatibility with the fastener material to reduce the risk of galling or damage.