DORMER A720.55 5971143

Metal drills A720

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References

Dormer:A720.55
Rubix:376A1311
EAN:7320760612064
Micro Drill 0.55 mm DIN 1899

Technical specifications

Drilling diameter0.55 mm
Total length25 mm
Length of cut4.5 mm
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Product details : DORMER A720.55 5971143


HSS-E micro drill with standard shank DIN 1899 N 118° uncoated 2.5xD for steel <850 N/mm² and cast iron.

Applications

• Free-cutting steel / mild steel (<120 HB <400 N/mm²)
• Structural steel / engineering steel (<200 HB <700 N/mm²)
• Carbon steel (<250 HB <850 N/mm²)
• Alloy steel (<250 HB <850 N/mm²)
• Cast iron lamellar (<150 HB >500 N/mm²)
• Cast iron lamellar (>150<300 HB >500<1000 N/mm²)

Technical specifications


Attributes
Drilling diameter0.55 mm
Total length25 mm
Length of cut4.5 mm
Shank typecylindrical
Din standarddin 1899
Coatinguncoated
Ratio of diameter to length of drill hole0.022
Tailcylindrical shank ø 1,00 mm
Direction of cuttingright
Body materialhss-e
Machining materialsteel and cast iron
Cutting materialhss-e
Tip angle118 °
Tail diameter1 mm
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