Thread Milling

THREADING | Solid Carbide and Indexable Thread Mills

Product Nomenclature

A

AccuThread™ 856 Indexable Inserts

DRILLING

TP 075

K

-

UN

32

I

1

2

3

4

5

6

Bolt-in Style

Pin Style

1. Insert Style

2. Insert Length

3. Coating

4. Thread Class

5. Thread Pitch

6. Thread Style

TP = Bolt-in TN = Pin style

075 = 3/4 100 = 1.00 150 = 1.50

K = AM210®

UN = UN UNJ = UNJ NPT = NPT

BSPT = BSPT

20 = UN 1.0 = ISO

I = Internal E = External

B

A = TiAlN

M = ISO

U = Uncoated

FA = Full ACME AP = API Round

NPTF = NPTF BSPP = BSPP

BORING

T 1

L 6

Indexable Inserts Symbol

Attribute

L 6 T 1

Length of insert Insert thickness

C

REAMING

AccuThread™ 856 Indexable Insert Holders

THT - 0400 -

1F

075 M

1

2

3

4

5

L 1

L 6

D

1. Holder Style Bolt-in Style

Pin Style

D 1

D 2

D 3

BURNISHING

THT = Tapered Head THN = Straight Head

THP = Weldon Positive Rake TNR = Weldon Neutral Rake TSN = Shell Mill Positive Rake TSR = Shell Mill Neutral Rake

Bolt-in Style Holders Symbol Attribute

Symbol Attribute

D 1 D 2 D 3

L 1 L 6

Maximum cutter diameter

Overall length Length of insert

Shank diameter Pilot diameter

2. Cutter Diameter

3. Shank Designation

E

0400 = 0.400

1F = 1 flute 2F = 2 flutes 3F = 3 flutes 5F = 5 flutes

6F = 6 flutes 7F = 7 flutes 8F = 8 flutes

L 1

L 8

THREADING

D 2

D 3

D 1

4. Length of Insert

5. Shank Designation

L 6

Pin Style Holders Symbol

075 = 3/4 100 = 1.00 150 = 1.50

Blank = Inch M = Metric

Attribute

Symbol Attribute

X

D 1

D 5 L 1 L 6 L 8 T 2

Cutter diameter

Bore diameter (Shell Mill)

D 1 *

Oversized cutter diameter

Overall length Length of insert

SPECIALS

D 2 D 3 D 4

Shank diameter Pilot diameter

Flute length

Body diameter (Shell Mill)

Slot width (Shell Mill)

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E: 35

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