20 Pcs 0.5mm Mini Twist Drill Bits, High-Speed Steel Extra Long Drill Bit 100mm Rigid Shaft Couplings Industry grade DC12V to DC

Industry grade DC12V to DC 19V step-up converter

* Big Ring Outer Diameter: 44mm / 1

* Color: Bronze Tone

5 x 15 x 7

Using special magnetic open lock device to open lock

20 Pcs 0.5mm Mini Twist Drill Bits, High-Speed Steel Extra Long Drill Bit 100mm Rigid Shaft Couplings Industry grade DC12V to DCDescription: 1. Made of high speed steel, with high hardness, heat resistance, wear resistance, durability and long service life. 2. The jobber extended drill is suitable for a wide range of applications, allowing you to access hard to reach areas where ordinary drills cannot. High hardness, sharp twist drill bits will make drilling easier and more efficient. 3. Split point tip and twist design increases cutting speed while easily self centering to