Jonnesway screwdriver bit SPLINE XZN M12×30mm 6-point 10mm D10M30M12A

Jonnesway SPLINE XZN screwdriver bit M12×30mm is a 6-point replacement bit with a 10 mm drive diameter designed for use with compatible bit holders, ratchets and powered drivers. The compact 30 mm length allows access into recessed fasteners and confined spaces commonly encountered in automotive, mechanical maintenance and industrial repair work. The bit’s spline/XZN profile provides a secure engagement with corresponding fasteners to reduce cam-out and distribute torque across multiple contact surfaces.

Advantages

This spline XZN bit offers precise fit to M12 spline fasteners and a 6-point geometry that helps minimise slippage under high torque. The 10 mm drive diameter ensures compatibility with standard 10 mm bit sockets and holders, while the short 30 mm length improves accessibility in tight areas without sacrificing strength. Manufactured to meet Jonnesway tooling standards, the bit is intended for repeatable, dependable use in workshop and field conditions.

Suitable for

• Automotive repair and engine assembly where XZN/spline fasteners are used
• Mechanical maintenance of machinery and equipment with recessed spline bolts
• Industrial assembly, service and maintenance tasks requiring compact bits

Key specifications

• Bit profile: SPLINE / XZN, 6-point
• Size: M12 spline
• Length: 30 mm
• Drive diameter: 10 mm
• Material and finish: hardened tool steel (Jonnesway standard)

How to use

Select a compatible 10 mm drive bit holder, socket or ratchet and insert the SPLINE XZN bit securely. Engage the bit with the matching M12 spline fastener, ensuring full seating before applying torque. For manual tightening or loosening, apply steady force and avoid sudden impacts; when using powered drivers, use controlled torque settings to prevent fastener or bit damage. After use, store the bit in a designated holder or toolbox to protect the spline profile.

Usage recommendations

Use appropriate torque values specified for the fastener and application. Inspect the bit for wear or rounding before high-torque operations and replace if the profile shows damage. Avoid using a damaged bit on critical fasteners to prevent injury or component damage.