Step Drill Bits Material
HSS 4241, HSS 4341, HSS 9341, M2, M35, M42
Surface Treatment
Bright finished, Tin-coated, Zr-coated, Black-oxidized
Shank
Round Shank, Three-Side Shank, Hex Shank, Hex Shank With a Step
Flute
Straight Flute, Spiral Flute
Process
Fully Ground
Application
Aluminum, Iron, Carbon Steel, Stainless steel, Plastic, etc. HSS4241 2mm Aluminum, Iron, 5mm Plastic
HSS6542/M2 5mm Aluminum, Iron, Carbon Steel, Plastic
HSSCO/M35 5mm Aluminum, Iron, Carbon Steel, Stainless Steel, Plastic
Features:
The ladder of its unique structure, a bit can open a variety of specifications of aperture.
Do not need to use center punch, compared with the ordinary twist drill is not easy to be broken.
Deburring, chamfering, elliptic hole enlargement, twist drill, the function of them was unable, but it is possible.
The use of tools: drill, bench drill. Work while water cooling, can effectively extend the service life of drill bit, recommend drilling rate of 250-250 RPM.
