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Blind hole screw tap UNF DIN 371 40° shape C 3xD HSS-E 1/4 inch

Blind hole screw tap UNF DIN 371 40° shape C 3xD HSS-E 1/4 inch

Blind hole screw tap UNF DIN 371 40° shape C 3xD HSS-E 1/4 inch
Item no: 1014578 111 

Online price:

Still in stock: 6

Application
- UNF thread
- Blind holes
- Max. drilling depth 3xD
- Steels up to 800 N/mm²

Execution
  • Right-hand spiral grooves approx. 40°
  • DIN type C (2-3 chamfer threads)


Brand: ATORN
Material to be processed: Steel
Thread type: UNF
Thread dimension: 1/4 inch - 28UNF
Hole type: Clearance hole ≤ 3xD
Lead angle shape: C
Length: 80 mm
Cutting material: HSSE
Surface: Uncoated
Twist angle: 40° (right)
DIN: 371
Shank diameter: 7 mm
Application type/machine type: CNC | Conventional
Core hole diameter: 5,50 mm
Coolant supply: External
Shank square: 5,5 mm
Cutting speed (steel 1000) suitability (ISO P 1000 N/mm²): 1
Cutting speed (steel 1300) suitability (ISO P 1300 N/mm²): 3
Overall stainless steel suitability (ISO M): 3
fitness not iron total (ISO N): 2
fitness Titan/Nickel/Super total (ISO S): 3
Cutting speed (cast) suitability (ISO K): 3
Cutting speed (hard 55) suitability (ISO H 55HRC): 3
Cutting speed (hard 65) suitability (ISO H 65HRC): 3

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