Product name
Three square shank spiral groove step drill
Optional Specifications (HSS 6542)
4-12/4-20(9step) 4-32 5-21 5-27
Optional Specifications 2(HSS 4241)
4-12(9step) 4-20(9step) 4-32
Optional Specifications (HSS M35)
4-12(9step) 4-20(9step) 4-32/15step
Advantage
Long service life /High product finish/High concentricity
Features 3
Double top technology,Ultra high finish
Features 1
Fully automatic machine X-shaped opening/Drilling does not slip
Features 2
CNC automatic Fully automatic machinegrindingUltra-high accuracy