<b>Specifications:</b><br> size:M / C / F <br> Material: Alloy & Stainless Steel<br> Color of Bit Head: Silver <br>Shank diameter: 3/32" <br>Size of Bit Head: Approx. 13mm/0.51in Length of Drill Bit: Approx. 26mm/1.02in <br> Total Weight: Approx. 9.6g/0.34oz<br> Package Include:1 * Nail Drill Bit Product <br> Advantages：<br>Higher Hardness Made of high quality zirconia ceramic, higher hardness and higher wear resistance, make the bits longer tool life. Meanwhile, it has better polish performance than metal bits. <br> Excellent Heat Dissipation Higher-efficiency heat dissipation than metal, so the bits won't be burning hot during long-time using.