Wokesi Pack of 8,1-6mm High Speed Steel Combined Center Drill Bit Double End Spotting Countersink CNC Lathe Industrial Tools,Uncoated,60 Degree Angle (1/1.5/2/2.5/3/4/5/6 60°)

1mm drill: drill tip diameter=1mm,shank diameter=3mm,total length=100mm 1.5mm drill: drill tip diameter=1.5mm,shank diameter=4mm,total length=100mm 2mm drill: drill tip diameter=2mm,shank diameter=5mm,total length=100mm 2.5mm drill: drill tip diameter=2.5mm,shank diameter=6mm,total length=100mm 3mm drill: drill tip diameter=3mm,shank diameter=8mm,total length=100mm 4mm drill: drill tip diameter=2mm,shank diameter=5mm,total length=100mm 5mm drill: drill tip diameter=5mm,shank diameter=5mm,total length=100mm 6mm drill: drill tip diameter=2mm,shank diameter=5mm,total length=100mm Center and spotting drills are traditionally used to make a conical hole for a lathe center in order to make a starting point for a standard twist drill, designed to prevent the twist drill from walking Used for producing center holds in components or work pieces with require machining between centers

• HSS, Double end with a standard 60 degree included angle
• Contains 8Pcs center drill bits:1mm 1.5mm 2mm 2.5mm 3mm 4mm 5mm 6mm blade diameter
• Made of high speed steel,Suitable for metal,general use
• Package: 8pcs HSS Center Drills