| Features: Steady precision clamp, high degree of concentricity, closing tight, solid and easy to smooth. Semiautomatic hand drill thickening nut, strong and not easy to crack. It is precise, accurate and efficient and tightly holds bit, can clip 0.83.0mm drill bits. Screw and half mechanical design, positioning accuracy, save time and effort. Can be used for wood, plastic, rubber, soft metal punching, bodhi, bone, etc. Specification: Material: Brass Weight: 63g2.2oz Color: Silver Length: 12.1cm4.8inch Chuck Size: 1.2 2.2mm Bits Specification: 0.3mm, 0.35mm, 0.4mm, 0.45mm, 0.5mm, 0.55mm, 0.6mm, 0.65mm, 0.7mm, 0.75mm, 0.8mm, 0.85mm, 0.9mm, 0.95mm, 1.0mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm … | |