3 pcs HSS Spiral Grooved Step Drill Set

 
Surface:      White Finish   or   Titanium Coated      are available.

 
Packaging:     Metal Case   or   Wooden Box    are available.

 
Item No.:    SDB303

Size include:

4 - 12mm x 9 step
6 - 20mm x 8 step
6 - 30mm x 13 step