download Product Catalogue PDF (2.4MB) - Goliath Threading Tools

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download Product Catalogue PDF (2.4MB) - Goliath Threading Tools

Spiral Flute - BA

0 1 2 3 4 5 6 8 10

No. of Flutes 3 3 3 2 2 2 2 2 2

Style 2 2 2 2 2 2 1 1 1

Fluteless - BA

BA/BSB

0 2 4 6 8

No. of Flutes - - - - -

Style 2 2 2 1 1

BSB (British Standard Brass)

BS949-1969

Nominal

Major

Diameter

d / inches

TPI

Overall

Length

Lmm

Length of

Thread

lmm

Shank

Diameter

d 1mm

Neck

Diameter

d 2mm

Neck

Length

l 1mm

Square A/F

mm

Square

Length

l 2mm

Table Reference

Number

Metric/Imperial

Pitch Diameter

Tolerance

*1/4 26 66 19 6.3 4.5 11 5 8

5/16 26 69 19 8 6 13 6.3 9

3/8 26 76 20 10 7.5 15 8 11

7/16 26 82 22 8 - - 6.3 9

1/2 26 84 24 9 - - 7.1 10

9/16 26 90 25 11.2 - - 9 12

5/8 26 95 25 12.5 - - 10 13

3/4 26 104 29 14 - - 11.2 14

7/8 26 113 33 16 - - 12.5 16

1 26 120 35 18 - - 14 18

* 1/4” BSB identical to 1/4” BSF

Class of Fit

Straight Flute - BSB

Available in:

Taper Lead

Second Lead

Bottom Lead

1/4 5/16 3/8 7/16 1/2 9/16 5/8 3/4 7/8 1

No. of Flutes 3 4 4 4 4 4 4 4 4 4

Style 2 2 2 3 3 3 3 3 3 3

24

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