Alfa Tools General Product Catalog

Cobalt M42 Jobber Drills Heavy Duty NAS 907, Type J Standards

Jobber Length 135 O Split Point Straw Gold Finish

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

• Their 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 • 135 O self-centering split point reduces thrust

FRACTIONAL

LETTER

ALFA USA STOCK # CO60201 CO60202 CO60203 CO60204 CO60205 CO60206 CO60207 CO60208 CO60209 CO60210 CO60211 CO60212 CO60213 CO60214 CO60215 CO60216 CO60217 CO60218 CO60219 CO60220 CO60221 CO60222 CO60223 CO60224 CO60225 CO60226

ALFA USA STOCK # CO50097 CO50098 CO50099 CO50101 CO50102 CO50103 CO50104 CO50105 CO50106 CO50107 CO50108 CO50109 CO50110 CO50111 CO50112 CO50113 CO50114 CO50115 CO50116 CO50117 CO50118 CO50119 CO50120 CO50121 CO50122 CO50123 CO50124 CO50125 CO50126 CO50127 CO50128 CO50129 CO50130 CO50131 CO50132 CO50133 CO50134 CO50135 CO50136 CO50137 CO50138 CO50139 CO50140 CO50141

DECIMAL

FLUTE

OVERALL LENGTH

DECIMAL

FLUTE

OVERALL LENGTH

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

2-5/8 2-3/4 2-3/4 2-3/4 2-3/4 2-7/8 2-7/8 2-7/8 2-7/8 2-7/8

3-7/8

0156 0312 0469 0625 0781 0938 1094 1250 1406 1562 1719 1875 2031 2188 2344 2500 2656 2812 2969 3125 3281 3438 3594 3750 3906 4062 4219 4375 4531 4688 4844 5000 5156 5312 5469 5625 5781 5938 6094 6250 6406 6562 6719 6875

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

3/4

A B C D E F G H K L M N O P Q R S T U V W I J

*1/64 *1/32 *3/64

4 4 4 4

1-3/8 1-3/4 1-7/8 2-1/4 2-5/8 2-3/4 2-7/8 3-1/8 3-1/4 3-1/2 3-5/8 3-3/4 3-7/8 4-1/8 4-1/4 4-3/8 4-1/2 4-5/8 4-3/4 4-7/8 5-1/8 5-1/4 5-3/8 5-1/2 5-5/8 5-3/4 5-7/8 6-5/8 6-5/8 6-5/8 6-5/8 6-5/8 7-1/8 7-1/8 7-1/8 7-1/8 7-1/8 7-5/8 7-5/8 2 4 5 6

1/16 5/64 3/32 7/64

4-1/8 4-1/8 4-1/8 4-1/8 4-1/8 4-1/4 4-1/4 4-3/8 4-3/8 4-1/2 4-5/8 4-3/4 4-3/4 4-7/8 4-7/8 5-1/8 5-1/8 5-1/4 5-1/4 5 5

1/8

9/64 5/32

2

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

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

11/64

3/16 Cobalt M42 Jobber Drills

13/64

7/32

A

15/64

1/4

17/64

9/32

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 33/64 17/32 35/64 37/64 19/32 39/64 41/64 21/32 43/64 11/16 9/16 5/8 1/2

X Y Z

3-1/2 3-5/8 3-3/4 3-7/8

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

3-15/16 4-1/16 4-3/16 4-5/16

4-3/8 4-1/2

Jobber Drills over 1/2"diameter have straight cylindrical shanks. For 1/2" Reduced Shank Drills, see Silver & Deming drills on page A44.

4-13/16 4-13/16 4-13/16 4-13/16 4-13/16 5-3/16 5-3/16 5-3/16 5-3/16 5-3/16

SETS

ALFA USA STOCK # CO50194 CO50193

QTY.

SIZES

1/16" - 1/4" by 64ths 1/16" - 1/2" by 32nds

13 Pc.

15 Pc. 19 Pc. 21 Pc. 25 Pc. 29 Pc. 26 Pc. 60 Pc.

1 0 mm - 10 0 mm by 5 mm

COM50198A

1/16" - 3/8" by 64ths

CO50192

1 0 mm - 13 0 mm by 5 mm

COM50198

5-5/8 5-5/8

1/16" - 1/2" by 64ths

CO50190 CO50197 CO50191 CO50199

Letter A - Z

*Smaller sizes than 1/16" have 135 O points, not split

1/64" to 5/16", 12 per envelope 21/64" to 1/2", 6 per envelope 33/64" and above, 1 per pack

Wire Gage #1 - #60

1/16" - 1/2" by 64ths, A - Z,

115 Pc.

Wire Gage #1 - #60 Drill Mug 1/16" - 1/2" by 64ths

CO50190DM

29 Pc.

Sizes 1/16" to 1/2" are available carded. See price list for details

A-20