3-13mm Metal HSS Steel Titanium Cone Step Drill Bit with Center Punch Woodworking Tools Set
1. Unique ladder construction. One drill bit can drill various holes,meet different demand when construction site.
2. Deburring, chamfering, drill and reaming of round holes,can achieve the functions that the twist drill cannot get.
3. Compared with ordinary twist drill.Small sway,can also drill the perfect hole without Center Punch.
4. Handdrill and bench drill are available. Pay attention to inject water to cool the bit while working,which can effectively extend the service life of the bit. 250-400 high drilling rate is recommended.
Material: High-Speed Steel 4241
Suitable: Workpieces with hardness less than 25HRC, such as carbon steel, thin iron plate, insulating board, PVC board, wood board, etc.)
Step Drill Bit length: 70mm/2.76"
Surface Treatment: Titanium Plating
HSS: 3-13mm (3, 4, 5, 6, 7, 8, 9, 10, 11, 12,13mm)
1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!
2. Please allow 1-3mm measuring deviation due to manual measurement.
1 X Center Punch
1 X Step Drill Bit