Addison Parallel Shank Twist Drills.
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High Speed Steel
Parallel Shank Twist Drills
Stub Series |
Specification Conform to BS
: 328/Part 1- 1959 |
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Dimensions in Inches |
Stub drills are normally right hand cutting spiral, standard
helix and are shortened form of parallel shank jobber series twist drills. They
have smaller cutting or flute length. Ideal for hand drills, automatic lathes
and turrets in general engineering applications in metal. Supplied as per BS 328
/ Part 1 standards. Also available in neutral brands as per DIN, IS and ISO
standards.
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Diameter h 8 |
Flute Length |
Overall Length |
| 1/8 |
11/16 |
1.15/16 |
| 9/64 |
25/32 |
2.1/16 |
| 5/32 |
7/8 |
2.5/32 |
| 11/64 |
15/16 |
2.9/32 |
3/16
13/64 |
1.1/32 |
2.7/16 |
7/32
15/64 |
1.1/8 |
2.19/32 |
| 1/4 |
1.7/32 |
2.3/4 |
17/64
9/32 |
1.5/16 |
2.29/32 |
19/64
5/16
21/64 |
1.7/16 |
3.1/8 |
11/32
23/64 |
1.9/16 |
3.5/16 |
3/8
25/64
13/32 |
1.11/16 |
3.1/2 |
27/64
7/16
29/64 |
1.27/32 |
3.3/4 |
15/32
31/64
1/2
33/64 |
2 |
4 |
17/32
35/64 |
2.1/8 |
4.7/32 |
9/16
37/64 |
2.7/32 |
4.3/8 |
19/32
39/64
5/8 |
2.9/32 |
4.17/32 |
41/64
21/32 |
2.3/8 |
4.11/16 |
| 43/64 |
2.7/16 |
4.27/32 |
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Diameter h 8 |
Flute Length |
Overall Length |
11/16
45/64 |
2.7/16 |
4.27/32 |
23/32
47/64 |
2.1/2 |
5 |
3/4
49/64
25/32 |
2.19/32 |
5.5/32 |
51/64
13/16
53/64 |
2.11/16 |
5.11/32 |
27/32
55/64
7/8 |
2.3/4 |
5.9/16 |
57/64
29/32
59/64 |
2.27/32 |
5.3/4 |
15/16
61/64
31/32 |
2.15/16 |
5.15/16 |
63/64
1
1.1/32 |
3.1/16 |
6.1/8 |
1.1/16
1.3/32 |
3.3/16 |
6.3/8 |
1.1/8
1.5/32 |
3.5/16 |
6.5/8 |
1.3/16
1.7/32 |
3.7/16 |
6.27/32 |
1.1/4
1.9/32
1.5/16 |
3.17/32 |
7.3/32 |
1.11/32
1.3/8 |
3.21/32 |
7.5/16 |
1.13/32
1.7/16
1.15/32 |
3.25/32 |
7.19/32 |
| 1.1/2 |
3.15/16 |
7.7/8 |
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Drills
Addison
