Addison Taper Shank Twist Drills.

High Speed Steel

TAPER SHANK TWIST DRILLS

Long Series

Specification conform

to IS  8305 - 1976

Dimensions in mm

   tapershanktwistdrillslongseries

Diameter h8

Range of Diameters

Flute Length

Overall Length Morse Taper No.

Over

Upto and including

5.0
5.1
5.2
5.3
4.75 5.30 74 155 1
5.4
5.5
5.6
5.7
5.8
5.9
6.0
5.30 6.00 80 161 1
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.00 6.70 86 167 1
6.8
6.9
7.0
7.1
7.2
7.3
7.4
7.5
6.70 7.50 93 174 1
7.6
7.7
7.8
7.9
8.0
8.1
8.2
8.3
8.4
8.5
7.50 8.50 100 181 1
8.6
8.7
8.8
8.9
9.0
9.1
9.2
9.3
9.4
9.5
8.50 9.50 107 188 1
9.6
9.7
9.8
9.9
10.0
10.1
10.2
10.3
10.4
10.5
10.6
9.50 10.60 116 197 1
10.7
10.8
10.9
11.0
11.1
11.2
11.3
11.4
11.5
11.6
11.7
11.8
10.60 11.80 125 206 1
11.9
12.0
12.1
12.2
12.3
12.4
12.5
12.6
12.7
12.8
12.9
13.0
13.1
13.2
11.80 23.20 134 215 1
13.3
13.4
13.5
13.6
13.7
13.8
13.9
14.0
13.20 14.00 142 223 1
14.25
14.5
14.75
15.0
14.00 15.00 147 245 2
15.25
15.5
15.75
16.0
15.00 16.00 153 251 2
16.25
16.5
16.75
17.0
16.00 17.00 159 257 2

Diameter h8

Range of Diameters

Flute Length

Overall Length Morse Taper No.

Over

Upto and including

17.25
17.5
17.75
18.0
17.00 18.00 165 263 2
18.25
18.5
18.75
19.0
18.00 19.00 171 269 2
19.25
19.5
19.75
20.0
19.00 20.00 177 275 2
20.25
20.5
20.75
21.0
20.00 21.20 184 282 2
21.25
21.5
21.75
22.0
22.25
21.20 22.40 191 289 2
22.5
22.75
23.0
22.40 23.02 198 296 2
23.25
23.5
23.02 23.60 198 319 3
23.75
24.0
24.25
23.60 25.00 206 327 3
24.5
24.75
25.0
23.60 25.00 206 327 3
25.25
25.5
25.75
26.0
26.25
26.5
25.00 26.50 214 335 3
26.75
27.0
27.25
27.5
27.75
28.0
26.50 28.00 222 343 3
28.25
28.5
28.75
29.0
29.25
29.5
29.75
30.0
28.00 30.00 230 351 3
30.25
30.5
30.75
31.0
31.25
31.5
30.00 31.50 239 360 3
31.75 31.50 31.75 248 369 3
32.0
32.5
33.0
33.5
31.75 33.50 248 397 4
34.0
34.25
34.5
35.0
35.5
33.50 35.50 257 406 4
36.0
36.5
36.75
35.50 37.50 267 416 4
37.0
37.5
35.50 37.50 267 416 4
38.0
38.5
39.0
39.5
40.0
37.50 40.00 277 426 4
40.5
14.0
14.5
42.0
42.5
40.00 42.50 287 436 4
43.0
43.5
42.50 45.00 298 447 4
44.0
44.5
45.0
42.50 45.00 298 447 4
45.5
46.0
46.5
47.0
47.5
45.00 47.50 310 459 4
48.0
48.5
49.0
49.5
50.0
47.50 50.00 321 470 4

 

Drills

Addison