5 pcs HSS Step Drill Set in Wooden Box
Surface: White Finish or Titanium Coated are available.
Item No.: SDT501
Size include: ( Three Flate Shank )
4 - 12mm x 9 step 4 - 20mm x 9 step 5 - 28mm x 7 step 4 - 30mm x 14 step 4 - 39mm x 13 step