TAMIYA Fine Pivot Bit 0.5mm shank 1mm 74116 Model Kit Tool. These fine pivot drill bits allow for the drilling of precise holes. Pivot drill bits have bits that are thinner than their shank, and they provide greater resistance against shattering while offering decreased deviation. Durable material is shatter-resistant. High-quality bit finish delivers excellent results. Compatible with 74112 Pin Vise D-R.