Can drill out sunk hole for screw cap while drilling the screw hole、and keep them on the same axial; Suitable for the drilling machines with collets or adapters; Suitable for drilling hard woods.
Dimensions: 2.72 in x 0.47 in x 0.47 in (6.9 cm x 1.2 cm x 1.2 cm) Weight: 2.01 oz (57 g)