Industrial Catalog

Cobalt Screw Machine Length Drills

Cobalt M42 High-Speed Steel NAS 907, Type J

• Manufactured from heat-resistant cobalt M42 high-speed steel, these drills maintain their cutting ability at temperatures exceeding 1000 O F

• Heat-resistant and heavy duty design enables use in the harder, high-tensile strength steels like stainless steel, titanium, armor plate, inconel and other difficult-to-machine materials

Features:

Heavy Duty, 135 O Split Point, Straw Gold Finish

FRACTIONAL

ALFA USA STOCK #

ALFA USA STOCK #

DECIMAL

FLUTE

OVERALL LENGTH

DECIMAL

FLUTE

OVERALL LENGTH

SIZE

SIZE

EQUIV.

LENGTH

EQUIV.

LENGTH

0625 0781 0938 1094 1250 1406 1562 1719 1875 2031 2188 2344 2500 2656 2812

5/8 3/4 7/8 11/16 13/16 15/16 1-1/16 1-1/8 1-3/16 1-1/4 1-5/16 1-3/8 1-7/16 1-1/2 1 1-5/16 1-3/8 1-3/8 1-3/8 1-3/8 1-7/16 1-7/16 1-1/2 1-1/2 1-1/2 1-1/2 1-9/16 1-9/16 1-5/16 1-5/16 1-1/4 1-1/4 1-1/4 1-1/4 1-3/16 1-3/16 1-3/16 1-3/16 1-3/16 1-3/16 1-1/8 1-1/8 1-1/8 1-1/8 1-1/8 1-1/16 1-1/16 1-1/16 1-1/16 1-1/16 FLUTE FLUTE

1-5/8 1-11/16 1-3/4 1-13/16 1-7/8 1-15/16 2-1/16 2-1/8 2-3/16 2-1/4 2-3/8 2-7/16 2-1/2 2-5/8 2-11/16 2-7/16 2-1/2 2-1/2 2-1/2 2-1/2 2-5/8 2-5/8 2-11/16 2-11/16 2-11/16 2-11/16 2-3/4 2-3/4 2-7/16 2-7/16 2-3/8 2-3/8 2-3/8 2-3/8 2-1/4 2-1/4 2-1/4 2-1/4 2-1/4 2-1/4 2-3/16 2-3/16 2-3/16 2-3/16 2-3/16 2-1/8 2-1/8 2-1/8 2-1/8 2-1/8 2-1/16 2-1/16 2-1/16 2-1/16 2-1/16 1-15/16 1-15/16 1-15/16

SMCO50201 SMCO50202 SMCO50203 SMCO50204 SMCO50205 SMCO50206 SMCO50207 SMCO50208 SMCO50209 SMCO50210 SMCO50211 SMCO50212 SMCO50213 SMCO50214 SMCO50215 SMCO60401 SMCO60402 SMCO60403 SMCO60404 SMCO60405 SMCO60406 SMCO60407 SMCO60408 SMCO60409 SMCO60410 SMCO60411 SMCO60412 SMCO60413 SMCO60301 SMCO60302 SMCO60303 SMCO60304 SMCO60305 SMCO60306 SMCO60307 SMCO60308 SMCO60309 SMCO60310 SMCO60311 SMCO60312 SMCO60313 SMCO60314 SMCO60315 SMCO60316 SMCO60317 SMCO60318 SMCO60319 SMCO60320 SMCO60321 SMCO60322 SMCO60323 SMCO60324 SMCO60325 SMCO60326 SMCO60327 SMCO60328 SMCO60329 SMCO60330 ALFA USA STOCK # ALFA USA STOCK #

2969 3125 3281 3438 3594 3750 3906 4062 4219 4375 4531 4688 4844 5000

1-9/16 1-5/8 1-11/16 1-11/16 1-3/4 1-13/16 1-7/8 1-15/16 2-1/16 2-1/8 2-1/8 2-13/16 2-1/4 2

2-11/16 2-1316 2-15/16 3-1/16 3-1/8 3-1/4 3-5/16 3-3/8 3-7/16 3-9/16 3-5/8 3-11/16 3-3/4 3 2-13/16 2-15/16 2-15/16 3-1/16 3-1/16 3-1/8 3-1/4 3-1/4 3-5/16 3-5/16 3-3/8 3 3 1-13/16 1-13/16 1-13/16 1-13/16 1-13/16 1-13/16 1-3/4 1-3/4 1-3/4 1-3/4 1-3/4 1-3/4 1-11/16 1-11/16 1-11/16 1-11/16 1-11/16 1-5/8 1-5/8 1-5/8 1-3/8 1-3/8 1-3/8 1-3/8 1-3/8 OVERALL LENGTH OVERALL LENGTH 1-7/8 1-7/8 1-7/8 1-7/8 1-7/8

SMCO50216 SMCO50217 SMCO50218 SMCO50219 SMCO50220 SMCO50221 SMCO50222 SMCO50223 SMCO50224 SMCO50225 SMCO50226 SMCO50227 SMCO50228 SMCO50229 SMCO60414 SMCO60415 SMCO60416 SMCO60417 SMCO60418 SMCO60419 SMCO60420 SMCO60421 SMCO60422 SMCO60423 SMCO60424 SMCO60425 SMCO60426 SMCO60331 SMCO60332 SMCO60333 SMCO60334 SMCO60335 SMCO60336 SMCO60337 SMCO60338 SMCO60339 SMCO60340 SMCO60341 SMCO60342 SMCO60343 SMCO60344 SMCO60345 SMCO60346 SMCO60347 SMCO60348 SMCO60349 SMCO60350 SMCO60351 SMCO60352 SMCO60353 SMCO60354 SMCO60355 SMCO60356 SMCO60357 SMCO60358 SMCO60359 SMCO60360 ALFA USA STOCK # ALFA USA STOCK #

1/16 5/64 3/32 7/64 9/64 5/32 11/64 1/8

19/64

5/16

21/64 11/32 23/64 25/64 13/32 27/64 29/64 15/32 31/64 3/8 7/16

Cobalt Screw Machine Length

3/16

13/64

7/32

15/64

1/4

17/64

1/2

9/32

1/16" to 5/16", 12 per envelope, 21/64" to 1/2", 6 per envelope

LETTER

DECIMAL

OVERALL LENGTH

DECIMAL

FLUTE

SIZE

SIZE

EQUIV.

LENGTH

EQUIV.

LENGTH

234 238 242 246 250 257 261 266 272 277 281 290 295

302 316 323 332 339 348 358 368 377 386 397 404 413

1-5/8 1-11/16 1-11/16 1-11/16 1-11/16 1-3/4 1-3/4 1-13/16 1-7/8 1-7/8 1-15/16 1-15/16

A B C D E F G H

N O P Q R S T U V X Y Z W

A

I

J

K L M

2

A to N, 12 per envelope, O to Z, 6 per envelope

WIRE GAGE

DECIMAL

OVERALL LENGTH

DECIMAL

FLUTE

SIZE

SIZE

EQUIV.

LENGTH

EQUIV.

LENGTH

2280 2210 2130 2090 2055 2040 2010 1990 1960 1935 1910 1890 1850 1820 1800 1770 1730 1695 1660 1610 1590 1570 1540 1520 1495 1470 1440 1405 1360 1285

1200 1160 1130 1110 1100 1065 1040 1015 0995 0980 0960 0935 0890 0860 0820 0810 0785 0760 0730 0700 0670 0635 0595 0550 0520 0465 0430 0420 0410 0400

7/8 7/8 7/8 7/8 7/8

1 2 3 4 5 6 7 8 9

31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52

13/16 13/16 13/16 13/16 13/16 13/16

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

3/4 3/4 3/4 3/4 3/4 3/4

11/16 11/16 11/16 11/16 11/16

1 1 1 1 1

* 53 * 54 * 55 * 56 * 57 * 58 * 59 * 60

5/8 5/8 5/8 1/2 1/2 1/2 1/2 1/2

15/16 15/16 15/16

* #53 - #60 drills do not have a split point

12 per envelope

A-29