Nine-Tenths of a Millimeter. One Hundred Percent Precision.

A perfectly drilled hole might be one of the least noticeable details on a scale model. Until it's in the wrong place. The Tamiya 74133 Fine Pivot Drill Bit is designed to keep those little surprises to a minimum, combining a precise 0.9 mm cutting diameter with a reinforced 1.5 mm shank for accurate, controlled drilling.

The secret lies in its clever stepped-shank construction. By making the shaft thicker than the cutting tip, Tamiya has created a drill bit that sits securely in a compatible pin vise while minimizing wobble and drilling deviation. The result is cleaner, more accurately positioned holes and improved resistance to breakage compared with conventional fine drill bits.

Manufactured from high-speed steel (HSS), the bit features a carefully finished cutting edge for reliable performance in plastic, wood, brass, aluminum, and steel. Its cutting diameter is clearly marked on the shank, making it easy to identify the correct size when working with several drill bits.

For WWI aircraft enthusiasts, 0.9 mm is particularly useful for preparing mounting points for landing gear components, installing metal locating pins, and creating openings for miniature fittings. It's equally valuable when modifying cockpit components, reinforcing assemblies, or fabricating custom parts for scratch-building projects.

With a 6.5 mm flute length and a recommended maximum drilling depth of 6.0 mm, this precision drill bit is particularly suited to controlled, shallow drilling operations. A protective plastic storage case keeps the cutting tip safe between modeling sessions.

Because precision isn't about making the smallest possible hole. It's about making exactly the right one.

Key Features

• Precision 0.9 mm cutting diameter for accurate drilling.

• Reinforced 1.5 mm shank for secure mounting in compatible pin vises.

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

• High-speed steel (HSS) construction for durability and reliable cutting performance.

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

• 6.5 mm flute length for controlled precision drilling.

• Recommended maximum drilling depth of 6.0 mm for shallow-hole applications.

• Suitable for plastic, wood, brass, aluminum, and steel with appropriate drilling techniques.

• Clearly marked cutting diameter for easy identification and organization.

• Ideal for aircraft detailing, mounting points, locating pins, and miniature fittings.

• Excellent for scratch-building, conversions, and precision assembly work.

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

• Protective plastic storage case included.

When preparing mounting holes for miniature aircraft fittings or metal locating pins, first mark the intended position with a fine needle. Secure the 0.9 mm bit in a manual pin vise and rotate gently, keeping the tool perpendicular to the surface. For delicate components, drill before final assembly whenever practical, and test the fit before applying adhesive.

Please Note: Unlike smaller Tamiya Fine Pivot Drill Bits with 1.0 mm shanks, this version features a 1.5 mm shank. It is therefore not compatible with the Tamiya 74051 Fine Pin Vise S. Use the Tamiya 74050 Fine Pin Vise D or 74112 Fine Pin Vise D-R instead. A compatible pin vise is required and sold separately.