Threadmill Internal Through Coolant – BSPT

Product Code: BSPT

Icon Guide:

BSPT

ITEM CODE

Thread

Pitch

Dimensions (mm)

No. of Flutes

Drill Dia

Internal / External

mm

d

D

L2

L1

L

Z

mm

TMI/E. 28.3HI. 060058 – BSPT

1/16″x28

28

6

5.8

16.3

16.8

57

3

6.7

TMI/E. 28.3HI .080077 – BSPT

1/8″x28

28

8

7.7

20

20.5

63

3

8.7

TMI/E. 19.4HI. 100099 – BSPT

1/4″x19

19

10

9.9

26.7

27.2

73

4

11.5

TMI/E. 19.4HI. 160134 – BSPT

3/8″x19

19

16

13.4

33.4

33.9

92

4

15.2

TMI/E. 14.5HI. 160157 – BSPT

1/2″, 3/4″x14

14

16

15.7

43.5

44.0

92

5

19

TMI/E. 11.5HI. 200199 – BSPT

1″, 1 1/2″, 2, 2 1/2″,x11

11

20

19.9

41.6

42.1

104

5

30.7

  • B+ve and i-Series available on request
  • UN, BSP, Whitworth Standards available on request
  • For HRC>60, use Duro Coat
  • For Through Coolant Threadmill, item Code will be TMI
  • For Non-Through Coolant Threadmill, Item Code will be TME

MATERIAL GROUP

MATERIAL

HARDNESS BENEFIT
HB

CUTTING SPEED V/s
m/min

Feed
f
mm/tooth

P

1

Unalloyed Steel

Low carbon (C=0.1-0.25)

125

50 – 200

0.025 – 0.3

2

Low alloy steel
(alloying elements≤5%)

Non hardened

180

50 – 150

0.02 – 0.22

3

Hardened

275

40 – 150

0.01 – 0.15

M

4

Stainless Steel

Non hardened

200

50 – 120

0.01 – 0.13

5

Austenitic

180

50 – 120

0.01 – 0.12

6

Stainless steel Cast ferritic

Hardened

330

50 – 90

0.01 – 0.1

K

7

Malleable

Ferritic (Short chips)

130

50 – 70

0.01 – 0.15

8

Grey cast iron

Low tensile strength

180

60 – 140

0.01 – 0.13

9

High tensile strength

260

35 – 100

0.01 – 012

10

Nodular SG iron

Pearlitic

260

35 – 80

0.01 – 0.12

N

11

Aluminium alloys

Cast

75

80 – 160

0.03 – 0.36

12

Cast & aged

90

100 – 200

0.1 – 0.3

13

Copper and copper alloys

Brass

90

160 – 250

0.04 – 0.43

14

Bronze and non leaded copper

10

120 – 200

0.03 – 0.36

S

15

High temperature alloys

Annealed (Nickel or Cobalt based)

250

15 – 35

0.005 – 0.06

16

Titanium alloys

Pure 99.5 Ti

400 Rm

35 – 70

0.006 – 0.07

H

17

Extra hard steel

Hardened & tempered

45-50 HRc

15 – 45

0.004 – 0.04

18

51-55 HRc

15 – 30

0.004 – 0.04