Small Holes. Steady Hands. Precision That Makes a Difference.

When it comes to scale modeling, even the smallest details deserve a perfectly positioned hole. The Tamiya 74115 Fine Pivot Drill Bit is designed to deliver exactly that, combining an ultra-fine 0.4 mm cutting diameter with a reinforced shank for greater stability and control.

The secret lies in its clever stepped-shank construction. While the cutting tip measures just 0.4 mm, the shank has a diameter of 1.0 mm, allowing the bit to sit securely in a compatible pin vise. This design helps reduce drilling deviation and provides greater resistance to breakage compared with conventional micro-drills of uniform diameter.

Manufactured from durable, high-quality material with a carefully finished cutting surface, the drill bit delivers clean, accurate results when working on delicate model components.

For WWI aircraft enthusiasts, 0.4 mm is a particularly useful diameter for preparing rigging attachment points, control cable connections, and mounting holes for miniature fittings. It's equally valuable when drilling holes for locating pins, scratch-built details, and other small components where precision matters.

Whether you're detailing a cockpit, preparing an aircraft for rigging, or modifying a delicate plastic component, this precision drill bit helps ensure that every hole ends up exactly where you intended.

Because a fraction of a millimeter might not sound like much. Until it's in the wrong place.

Key Features

• Precision 0.4 mm cutting diameter for accurate micro-drilling.

• Reinforced 1.0 mm shank for secure mounting in compatible pin vises.

• Stepped-shank design helps reduce wobble and drilling deviation.

• Greater resistance to breakage compared with conventional fine drill bits.

• High-quality cutting surface for clean, accurate drilling.

• Ideal for delicate plastic components and miniature modeling details.

• Excellent for WWI aircraft rigging, control cables, and attachment points.

• Useful for scratch-building, detailing, conversions, and mounting small components.

• Compatible with Tamiya 74050 Fine Pin Vise D, 74051 Fine Pin Vise S, and 74112 Fine Pin Vise D-R.

When preparing rigging attachment points on WWI aircraft, mark the drilling position with a fine needle before introducing the drill bit. Secure the 0.4 mm bit in a manual pin vise and rotate gently, keeping the tool perpendicular to the surface. Avoid excessive pressure and sideways movement, particularly when drilling into thin wings or delicate structural components.

Please Note: Although the reinforced shank improves stability and resistance to breakage, the 0.4 mm cutting tip remains delicate. Use gentle pressure and avoid lateral forces. A compatible pin vise is required and sold separately.