ANSI HSS 6 INCH EXTRA LENGTH DRILLS
Manufacturing process: fully ground
 Point angle: 118 or 135 split point
 Flute type: N
 Material: HSS or HSS-Co
 Finish: bright, black oxide, amber
 Diameter: 3/64-1/2inch, A-Z
　 Fractional 　 Letter
D Dec. Equiv. FL OAL 　 D Dec. Equiv. FL OAL
3/64 0.0469 3/4 6 　 A 0.234 2 5/8 6
1/16 0.0625 7/8 6 　 B 0.238 2 3/4 6
5/64 0.0781 1 6 　 C 0.242 2 3/4 6
3/32 0.0938 1 1/4 6 　 D 0.246 2 3/4 6
7/64 0.1094 1 1/2 6 E 0.25 2 3/4 6
1/8 0.125 1 5/8 6 　 F 0.257 2 7/8 6
9/64 0.1406 1 3/4 6 　 G 0.261 2 7/8 6
5/32 0.1563 22 6 　 H 0.266 2 7/8 6
11/64 0.1719 1/8 6 　 I 0.272 2 7/8 6
3/16 0.1875 2  5/16 6 　 J 0.277 2 7/8 6
13/64 0.2031 2  7/16 6 　 K 0.281 2 15/16 6
7/32 0.2188 2 1/2 6 　 L 0.29 2 15/16 6
15/64 0.2344 2 5/8 6 　 M 0.295 3  1/16 6
1/4 0.25 2 3/4 6 　 N 0.302 3  1/16 6
17/64 0.2656 2 7/8 6 　 O 0.316 3  3/16 6
9/32 0.2813 2 15/16 6 　 P 0.323 3  5/16 6
19/64 0.2969 3  1/16 6 　 Q 0.332 3  7/16 6
5/16 0.3125 3  3/16 6 　 R 0.339 3  7/16 6
21/64 0.3281 3  5/16 6 　 S 0.348 3 1/2 6
11/32 0.3438 3  7/16 6 　 T 0.358 3 1/2 6
23/64 0.3594 3 1/2 6 　 U 0.368 3 5/8 6
3/8 0.375 3 5/8 6 　 V 0.377 3 5/8 6
25/64 0.3906 3 3/4 6 　 W 0.386 3 3/4 6
13/32 0.4063 3 7/8 6 　 X 0.397 3 3/4 6
27/64 0.4219 3 15/16 6 　 Y 0.404 3 7/8 6
7/16 0.4375 4  1/16 6 　 Z 0.413 3 7/8 6
29/64 0.4531 4  3/16 　 　 　 　 　 　
15/32 0.4688 4  5/16 　 　 　 　 　 　
31/64 0.4844 4 3/8 　 　 　 　 　 　
1/2 0.5 4 1/2 　 　 　 　 　 　
Note: Split point drills available from 1/8" and above sizes
          Sizes over 1/2" are black oxide finish
ANSI HSS 12 INCH EXTRA LENGTH DRILLS
Manufacturing process: fully ground
 Point angle: 118
 Material: HSS or HSS-Co
 Finish: bright, amber
 Diameter: 1/8 - 3/4 inch
Fractional  
Dia. Dec. Eq. FluteLength OAL
1/8 .1250 9 12
9/64 .1406 9 12
5/32 .1562 9 12
11/64 .1719 9 12
3/16 .1875 9 12
13/64 .2031 9 12
7/32 .2188 9 12
15/64 .2344 9 12
1/4 .2500 9 12
17/64 .2656 9 12
9/32 .2812 9 12
19/64 .2969 9 12
5/16 .3125 9 12
21/64 .3281 9 12
11/32 .3438 9 12
23/64 .3594 9 12
3/8 .3750 9 12
25/64 .3906 9 12
13/32 .4062 9 12
27/64 .4219 9 12
7/16 .4375 9 12
29/64 .4531 9 12
15/32 .4688 9 12
31/64 .4844 9 12
1/2 .5000 9 12
33/64 .5156 9 12
17/32 .5312 9 12
35/64 .5469 9 12
9/16 .5625 9 12
37/64 .5781 9 12
19/32 .5938 9 12
39/64 .6094 9 12
5/8 .6250 9 12
21/32 .6562 9 12
11/16 .6875 9 12
23/32 .7188 9 12
3/4 .7500 9 12
Note: Split point drills available from 1/8" and above sizes
          Sizes over 1/2" are black oxide finish

　
　

ANSI HSS 18 INCH EXTRA LENGTH DRILLS
Manufacturing process: fully ground
 Point angle: 118 or 135 split point
 Flute type: N
 Material: HSS or HSS-Co
 Finish: bright, black oxide, amber
 Diameter:1/4-1inch

Fractional

Dia. Dec. Eq. Flute Length OAL
1/4 .2500 13 18
17/64 .2656 13 18
9/32 .2812 13 18
19/64 .2969 13 18
5/16 .3125 13 18
21/64 .3281 13 18
11/32 .3438 13 18
23/64 .3594 13 18
3/8 .3750 13 18
25/64 .3906 13 18
13/32 .4062 13 18
27/64 .4219 13 18
7/16 .4375 13 18
29/64 .4531 13 18
15/32 .4688 13 18
31/64 .4844 13 18
1/2 .5000 13 18
33/64 .5156 13 18
17/32 .5312 13 18
35/64 .5469 13 18
9/16 .5625 13 18
37/64 .5781 13 18
19/32 .5938 13 18
39/64 .6094 13 18
5/8 .6250 13 18
21/32 .6562 13 18
11/16 .6875 13 18
23/32 .7188 13 18
3/4 .7500 13 18
25/32 .7812 13 18
13/16 .8125 13 18
7/8 .8750 13 18
15/16 .9375 13 18
1 1.0000 13 18
Note: Split point drills available from 1/8" and above sizes
          Sizes over 1/2" are black oxide finish