High Speed Steel Twist Drills Drill Number Size 51 Diameter .0670 inch 1.70mm Sold as 2 Packs of 5 Drills Each Weight - 1 oz. These Mini Precision Drills Are Used ByJewelersBead MakersModel MakersHobbyistsR/C Planes Etc To Drill In Wood, Metal, Plastic, Acrylic EtcTo Be Used With Mini Pin Vised And Rotary Tools Etc
