Thread Milling

BSW

THREADING | Solid Carbide and Indexable Thread Mills

Solid Carbide Thread Mills BSW | Non-Coolant

A

Internal

DRILLING

R = .137P

55°

L 1

R = .137P

External

L 6

D 2

D 1

B

BSW | Non-Coolant

BORING

Thread Mill

Part No.

TPI (Pitch)

Min Thread Ø

Flutes

ThreadMills USA

AccuThread™ 856

D 1

D 2

L 6

L 1

TM20BSW TM18BSW TM16BSW TM14BSW TM12BSW TM11BSW TM10BSW TM9BSW TM8BSW

- - - - - - - - -

20 18 16 14 12 11 10 20 18 16 14 12 11 10 9 8

1/4

3 3 5 5 5 5 5 6 6 3 3 5 5 5 5 5 6 6

0.177 0.197 0.276 0.311 0.354 0.468 0.468 0.620 0.620

0.250 0.250 0.312 0.312 0.375 0.500 0.500 0.625 0.625

0.400 0.445 0.563 0.715 0.750 0.910 1.100 1.112 1.375 10.16 11.29 14.29 18.15 19.10 23.10 27.94 28.23 34.94

2.500 2.500 3.000 3.000 3.500 3.500 3.500 4.000 4.000 58.00 58.00 64.00 64.00 73.00 84.00 84.00 93.00 93.00

5/16

3/8

7/16

C

1/2 5/8 3/4 7/8

REAMING

1

TM20BSWM TM18BSWM TM16BSWM TM14BSWM TM12BSWM TM11BSWM TM10BSWM TM9BSWM TM8BSWM

TMBK0250-20M TMBK0312-18M TMBK0375-16M TMBK0437-14M TMBK0500-12M TMBK0625-11M TMBK0750-10M TMBK0875-9M TMBK1000-8M

1/4

4.50 5.00 7.00 7.90 9.00

6.00 6.00 8.00 8.00

5/16

3/8

7/16

1/2 5/8 3/4 7/8

10.00 12.00 12.00 16.00 16.00

11.90 11.90 15.90 15.90

D

9 8

1

BURNISHING

E

THREADING

X

Weldon Flat

E: 52 - 55

E: 4

SPECIALS

To order a thread mill with a Weldon flat, replace the leading TM designator with TW (available for inch shanks 3/8 and above, or metric shanks 6mm and above) Example: Cylindrical shank = TM NK0500-NPT | Weldon shank flat = TW NK0500-NPT NOTE: Weldon flats have a minimum order quantity of 2 pieces

Key on E: 1

= Imperial (in) = Metric (mm )

E: 8

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