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Step Drill (3-Flute Type)

Step Drill (3-Flute Type)

[Features]
· The 3-flute specification allows stable hole drilling with no load and no chatter.
[Applications]
· Work materials: Iron (items of strength 900 N/mm2 or less), aluminum, brass, plastic (up to 2 mm for plastic only, up to 4 mm for others)

Part Number

Configured Part Number is shown.

Part Number
101-350-9
101-351
101-352
Part NumberVolume DiscountDays to ShipNumber of Steps
(Level)
Shank diameter
(mm)
Drilling Dimensions
(φ mm)
JAN Code Trusco Code Mass
(g)
4 Day(s) or more 964、5、6、7、8、9、10、11、124007140109019486-372122
4 Day(s) or more 984、6、8、10、12、14、16、18、204007140109026486-374760
4 Day(s) or more 14104、6、8、10、13、14、16、18、20、22、24、26、28、304007140109033486-3763185

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Basic Information

Step width(mm) 4 Work material Iron (4 mm), Stainless Steel (4 mm), Aluminum (4 mm), Copper (4 mm), Plastic (2 mm) Material Cobalt HSS
Surface Treatment Non-coating Shank shape Three chamfering

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