Drill guide bushing for accurate 4.0mm drilling

The OpenBuilds 4.1mm diameter Drill Guide Bushing for 4.0mm Drills is a precision guide component used to support and direct a 4.0mm drill bit during drilling. It helps maintain alignment in jigs, fixtures, and templates where repeatable hole placement matters.

Key features of the OpenBuilds drill bushing

• 4.1mm inner diameter: Sized to guide 4.0mm drill bits with practical running clearance.
• Made for repeatable drilling: Helps reduce bit wandering when drilling through a prepared guide setup.
• Useful in custom fixtures: Suitable for workshop jigs, template drilling, and part-location tools.
• OpenBuilds component: Designed as a machine and fabrication accessory within OpenBuilds-style builds and shop tooling.

How a drill guide bushing helps in real use

A drill bushing is useful when multiple parts need the same hole location or when a template must guide a drill accurately. In fabrication, prototyping, CNC accessory building, and general workshop use, a guided drill path can improve consistency and reduce setup variation between parts.

This 4.0mm drill guide bushing is well suited to fixture-building tasks, alignment templates, and repair or assembly work where clean positioning is more important than freehand drilling. It can also support repeat operations in small-batch production or maker projects that rely on consistent hole spacing.