10Pcs Micro Twist Bits Tungsten Steel Circuit Board Straight Handle Spiral Drill 0.3‑1.2mm

1、The incisive cutting edge and the large spiral notch design make it easy to remove chips and make the hole smoother and faster. 2、Adopting nanotechnology and advanced grinding technology, it has good chip removal effect and fast processing speed. 3、The drill bit made of tungsten steel has high hardness and wear resistance, which can avoid breaking during use. 4、Contains 10 miniature twist drills of different sizes, which are suitable for deep hole processing in different situations. 5、Used on printed circuit board drill machine, carving machine, CNC and other high accuracy special drilling equipment.Item Type: Micro Twist Bits Material: Tungsten steel Specification: 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm 10 x Micro Twist Bits