AccuThread® 856 Pin Style 360 Images Icon
Thread mills drastically reduce the occurrences of scrap when compared to taps, which makes them desirable when manufacturing large and/or costly components. AccuThread® 856 are a premium thread milling product backed by Allied’s experienced technical staff. AccuThread® 856 replaceable thread mills provide quality threads when compared to other thread making processes and allow for easy replacement of cutting edges.
Advantages
  • Provides a 25-50% increase in tool life over the competition
  • Increased strength and rigidity when cutting forces are applied
  • Holders are engineered to dampen vibration *Reduces tooling inventory cost
  • No resharpening required
  • The pin style connection improves repeatability when changing inserts
Features
  • Allied's proprietary AM210® coating
  • Stainless steel holders
  • Wide range of forms and pitches
  • Imperial and metric shanks
  • Offered in neutral and positive rake geometries
  • Online programming
Contact Engineering Support
AccuThread Pin Style Rotation
AccuThread Pin Style Rotation
AccuThread Pin Style Angle
AccuThread Pin Style Side
AccuThread Pin Style Close Up
AccuThread Pin Style Explosion
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Recommended Industries   KeyIcon Reference
Aerospace
Agriculture
Automotive
General Production
Heavy Equipment
Marine
Renewable Energy/ Energy



Technical Information

Product Specifications
Product Type
Inserted Thread Mill
Thread Form
NPT, NPTF, BSPT, BSPP, API, ACME, UN, UNJ, ISO
Shank Options
Weldon, Shell Mill
Coating
AM210®
Substrate Options
Carbide
Coolant
Coolant and Noncoolant
Geometry Options
Positive Rake, Neutral Rake
Product Nomenclature
AccuThread® 856 Indexable Insert Holders
Holder Style
x
THP = Weldon Positive Rake
TNR = Weldon Neutral Rake
TSN = Shelll Mill Positive Rake
TSR = Shell Mill Neutral Rake
THP
-
Length of Insert
x
0400 = 0.400
0400
-
Shank Designation
x
1F = 1 flute
2F = 2 flutes
3F = 3 flutes
5F = 5 flutes
 
6F = 6 flutes
7F = 7 flutes
8F = 8 flutes
1F
Length of Insert
x
075 = 3/4
100 = 1.00
150 = 1.50
075
Shank Designation
x
Blank = Inch
M = Metric
M
E: Solid & Indexable Thread Mills
AccuThread® 856 Pin Style
E: Solid & Indexable Thread Mills
E: Solid & Indexable Thread Mills
E: Solid & Indexable Thread Mills
Recommended Cutting Data
AccuThread 856 Indexable Neutral Rake
AccuThread 856 Indexable Neutral Rake
Metric
AccuThread 856 Indexable Neutral Rake
Imperial
AccuThread 856 Indexable Positive Rake
AccuThread 856 Indexable Positive Rake
Metric
AccuThread 856 Indexable Positive Rake
Imperial
Additional Resources and Guidelines
Cost Per Hole Worksheet
Cost Per Hole Worksheet
Predrill Diameter Chart
Predrill Diameter Chart
Thread Mill Pocket Guide
Thread Mill Pocket Guide