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THREADING | Indexable Thread Mills

Indexable Thread Mill Overview Product Nomenclature AccuThread® 856 Indexable Inserts TP 075 K -

UN

32

I

Insert Style TP = Bolt-in TN = Pin style

Insert Length 075 = 0.75" 100 = 1.00" 150 = 1.50"

CoaƟng

Thread Class

Thread Pitch

Thread Style

K = AM210®

UN = UN UNJ = UNJ NPT = NPT

BSPT = BSPT

20 = UN 1.0 = ISO

I = Internal E = External

A = TiAlN

M = ISO

FA = Full ACME AP = API Round

U = Uncoated

E20

NPTF = NPTF BSPP = BSPP

Reference Key Symbol AƩribute T 1

Insert Thickness Length of insert

L 6

AccuThread® 856 Indexable Holders THT -

0400 -

1F

075

M

Holder Style

Diameter

Flute DesignaƟon Insert Length Shank DesignaƟon

Bolt-in Style

Pin Style

0400 = 0.400"

1F = 1 flute 2F = 2 flutes 3F = 3 flutes 5F = 5 flutes 6F = 6 flutes 7F = 7 flutes 8F = 8 flutes

075 = 0.75" 100 = 1.00" 150 = 1.50"

Blank = Imperial

THT = Tapered head THN = Straight head

THP = Weldon (posiƟve) TNR = Weldon (neutral) TSN = Shell mill (posiƟve) TSR = Shell mill (neutral)

M = Metric

Reference Key Symbol AƩribute D 1

Maximum cuƩer diameter Oversized cuƩer diameter

D 1 *

D 2 D 3 D 4 D 5 L 1 L 6 L 8 T 2

Shank diameter Pilot diameter

Body diameter (shell mill) Bore diameter (shell mill)

Overall length Length of insert

Flute Length

Slot width (shell mill)

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E20: 4