Alva Engineers

SKU Number

DRIVE DIAMETER

SIZES

18-12

Letter Size Drills

A to Z

18-14

Fractional Size Drills

1/16" To 1/2" x 64ths

18-14E

Fractional SizeEasy Read

1/16" To 1/2" x 64ths

18-15

Number Size Drills

1 to 60

18-15E

Number Size Drills Easy Read

1 to 60

18-35

Metric Size Drills

To 13mm x .05mm

SKU Number

BODY & COUNTERSINK DIAMETER

DRILL DIAMETER

TIP LENGTH

TYPE

30-100-25-8

.187"

.0980"

0.295"

H.S.S.

30-100-25-8C

.187"

.0980"

0.295"

Cobalt

30-100-35-8

.250"

.0980"

0.420"

H.S.S.

30-100-35-8C

.250"

.0980"

0.420"

Cobalt

30-100-50-8

.250"

.1285"

0.560"

H.S.S.

30-100-50-8C

.250"

.1285"

0.560"

Cobalt

40-100-25-8

.250"

.0980"

0.295"

H.S.S.

40-100-25-8C

.250"

.0980"

0.295"

Cobalt

40-100-35-8

.187"

.0980"

0.420"

H.S.S.

40-100-35-8C

.187"

.0980"

0.420"

Cobalt

40-100-50-8

.187"

.0980"

0.560"

H.S.S.

40-100-50-8C

.187"

.0980"

0.560"

Cobalt

S40-100-25-8

.250"

.1285"

0.295"

H.S.S.

S40-100-25-8C

.250"

.1285"

0.295"

Cobalt

S40-100-35-8

.250"

.0980"

0.420"

H.S.S.

S40-100-35-8C

.250"

.0980"

0.420"

Cobalt

S40-100-50-8

.250"

.0980"

0.560"

H.S.S.

S40-100-50-8C

.250"

.0980"

0.560"

Cobalt

SKU Number

H' OVERALL HEIGHT

L1' SHAFT OFFSET

L2' SHAFT OFFSET

TYPE

20-T-21

5-5/8" (143 mm)

3/4" (19 mm)

1-1/2" (38 mm)

1/8" Capacity - 1/4" Offset Thickness

20-T-23

6-1/2" (165 mm)

1-5/32" (29 mm)

2-3/16" (56 mm)

1/4" Capacity - 7/16" Offset Thickness

20-T-235

6-5/8" (168 mm)

2-5/16" (59 mm)

3-3/16" (81 mm)

1/4" Capacity - 7/16" Offset Thickness

20-T-25

2" (51 mm)

2-5/16" (59 mm)

3-3/16" (81 mm)

1/4" Capacity - 7/16" Offset Thickness

SKU Number

DRILL SIZE

OVERALL LENGTH

18-DS-1

#1

1-1/2" (38 mm)

18-DS-1/4

1/4"

2-1/8" (54 mm)

18-DS-10

#10

1-1/2" (38 mm)

18-DS-11

#11

1-1/2" (38 mm)

18-DS-12

#12

1-1/2" (38 mm)

18-DS-16

#16

1-1/2" (38 mm)

18-DS-17

#17

1-1/2" (38 mm)

18-DS-20

#20

1-1/2" (38 mm)

18-DS-21

#21

1-1/2" (38 mm)

18-DS-27

#27

1-5/16" (33 mm)

18-DS-28

#28

1-5/16" (33 mm)

18-DS-3/8

3/8"

2-1/8" (54 mm)

18-DS-30

30

1-5/16" (33 mm)

18-DS-40

#40

1-5/16" (33 mm)

18-DS-41

#41

1-5/16" (33 mm)

18-DS-5/16

5/16"

2-1/8" (54 mm)

18-DS-50

#50

1-5/16" (33 mm)

18-DS-6

#6

1-1/2" (38 mm)

18-DS-7/16

7/16"

2-1/8" (54 mm)

18-DS-7/32

7/32"

2-1/8" (54 mm)

18-DS-9/32

9/32"

2-1/8" (54 mm)

53-1234

#10, #21, #30 & #40

-

SKU Number

FREE RPM

OVERALL LENGTH

WEIGHT

15LF281-62

5300

10.0" (254 mm)

1.5 lbs (0.7 kgs)

15LF282-62

4000

10.0" (254 mm)

1.5 lbs (0.7 kgs)

15LF283-62

3300

10.0" (254 mm)

1.5 lbs (0.7 kgs)

15LF284-62

2100

10.4" (264 mm)

1.7 lbs (0.8 kgs)

15LF285-62

1000

11.1" (282 mm)

1.8 lbs (0.8 kgs)

15LF286-62

750

11.1" (282 mm)

1.8 lbs (0.8 kgs)

15LF287-62

600

11.1" (282 mm)

1.8 lbs (0.8 kgs)

SKU Number

DRILL SIZES

DECIMAL EQUIVALENT

02-2971-1/4C

1/4"

.2500"

02-2971-1/8C

1/8"

.1250"

02-2971-17/64C

17/64"

.2656"

02-2971-3/16C

3/16"

.1875"

02-2971-3/32C

3/32"

.0938"

02-2971-3/8C

3/8"

.3750"

02-2971-5/16C

5/16"

.3125"

02-2971-5/32C

5/32"

.1562"

02-2971-7/32C

7/32"

.2188"

02-2971-9/32C

9/32"

.2812"

02-2972-10C

#10

.1935"

02-2972-11C

#11

.1910"

02-2972-16C

#16

.1770"

02-2972-20C

#20

.1610"

02-2972-21C

#21

.1590"

02-2972-27C

#27

.1440"

02-2972-30C

#30

.1285"

02-2972-3C

#3

.2130"

02-2972-40C

#40

.0980"

02-2973-DC

D

.2460"

02-2973-FC

F

.2570"

02-2973-GC

G

.2610"

02-2973-JC

J

.2770"

02-2974-2.3C

2.3 mm

.0906"

02-2974-3.17C

3.17 mm

.1248"

02-2974-3.96C

3.96 mm

.1569"

SKU Number

DESCRIPTION

H' OVERALL HEIGHT

L1' SHAFT OFFSET

L2' OVERALL LENGTH

20-720

Straight - 3/8" Offset Thickness

1-1/8" (29 mm)

2-7/16" (62 mm)

3-3/16" (81 mm)

20-725

Straight - 3/8" Offset Thickness

4-9/16" (116 mm)

2-7/16" (62 mm)

3-3/16" (81 mm)

20-730

Straight - 3/8" Offset Thickness

1-1/8" (29 mm)

3-3/4" (95 mm)

4-1/2" (114 mm)

20-735

Straight - 3/8" Offset Thickness

4-9/16" (116 mm)

3-3/4" (95 mm)

4-1/2" (114 mm)

20-745

30° Offset - 3/8" Offset Thickness

4-9/16" (116 mm)

3-1/8" R (79 mm)

4" (102 mm)

20-755

30° Offset - 3/8" Offset Thickness

4-9/16" (116 mm)

3-1/8" L (79 mm)

4" (102 mm)

20-820

Straight - 1/4" Offset Thickness

11/16" (18 mm)

2-7/16" (62 mm)

-

20-825

Straight - 1/4" Offset Thickness

5-3/16" (132 mm)

2-7/16" (62 mm)

-

20-830

Straight - 1/4" Offset Thickness

11/16" (18 mm)

3-3/4" (95 mm)

-

20-835

Straight - 1/4" Offset Thickness

5-3/16" (132 mm)

3-3/4" (95 mm)

-

20-845

30° Offset - 0.290" Offset Thickness

4-1/8" (105 mm)

Right

-

20-855

30° Offset - 0.290" Offset Thickness

4-1/8" (105 mm)

Left

-

SKU Number

DRILL TYPE

TYPE

18-1040

#40

1/2" OD Slip Bushings

18-1041

3/32"

1/2" OD Slip Bushings

18-1042

#30

1/2" OD Slip Bushings

18-1043

1/8"

1/2" OD Slip Bushings

18-1044

#21

1/2" OD Slip Bushings

18-1045

5/32"

1/2" OD Slip Bushings

18-1046

#10

1/2" OD Slip Bushings

18-1047

3/16"

1/2" OD Slip Bushings

18-1048

7/32"

1/2" OD Slip Bushings

18-1049

1/4"

1/2" OD Slip Bushings

18-5210

N/A

Drill Stand

SKU Number

KEY NUMBER

MODEL - PILOT SIZE

MOUNT THREAD - STYLE

REF NO. - CAPACITY

20-14700

K30

Jacobs® Plain Bearing Chuck

3/8-24 - Fluted

41BA - 3/8"

20-6138

K32

Jacobs® Plain Bearing Chuck

1/2-20 - Fluted

33BA-1/2 - 1/2"

20-6200

K0

Jacobs® Plain Bearing Chuck

0 JT - Smooth

0 - 5/32"

20-6208

K1

Jacobs® Plain Bearing Chuck

3/8-24 - Smooth

1B - 1/4"

20-6255

K7

Jacobs® Plain Bearing Chuck

3/8-24 - Fluted

7BA - 1/4"

20-6283

K32

Jacobs® Plain Bearing Chuck

3/8-24 - Fluted

33BA-3/8 - 1/2"

20-K0

-

K0 'T' Handle Key - 1/8"

-

-

20-K1

-

K1 'T' Handle Key - 5/32"

-

-

20-K30

-

K30 Thumb Handle Key - 15/64"

-

-

20-K32

-

K32 Thumb Handle Key - 1/4"

-

-

20-K7

-

K7 Thumb Handle Key - 7/32"

-

-

SKU Number

CAPACITY

FREE RPM

OVERALL LENGTH

WEIGHT

SDR10P25R2

1/4"

2500

7-1/8" (181 mm)

2.4 lbs (1.1 kgs)

SDR10P25R3

3/8"

2500

7-5/8" (193 mm)

2.6 lbs (1.15 kgs)

SDR10P40N2

1/4"

4000

7-5/8" (193 mm)

2.3 lbs (1.0 kgs)

SDR10P40N3

3/8"

4000

8-1/8" (206 mm)

2.5 lbs (1.1 kgs)

SDR10P4N3

3/8"

400

9-1/8" (231 mm)

2.9 LBS (1.3 kgs)

SDR10P4N4

1/2"

400

9-5/8" (244 mm)

3.3 lbs (1.5 kgs)

SDR10P60N2

1/4"

6000

7-5/8" (193 mm)

2.3 lbs (1.0 kgs)

SDR10P60N3

3/8"

6000

8-1/8" (206 mm)

2.5 lbs (1.1 kgs)

SDR10P7N3

3/8"

700

9-1/8" (231 mm)

2.9 LBS (1.3 kgs)

SDR10P7N4

1/2"

700

9-5/8" (244 mm)

3.3 lbs (1.5 kgs)

SKU Number

FREE RPM

OVERALL LENGTH

WEIGHT

15LN281-52

3500

11.5" (292 mm)

2.5 lbs (1.1 kgs)

15LN283-52

1300

11.5" (292 mm)

2.5 lbs (1.1 kgs)

15LN284-52

1070

12.8" (325 mm)

2.9 LBS (1.3 kgs)

15LN285-52

870

12.8" (325 mm)

2.9 LBS (1.3 kgs)

15LN286-52

540

12.8" (325 mm)

2.9 LBS (1.3 kgs)

15LN288-52

3900

11.5" (292 mm)

2.5 lbs (1.1 kgs)

SKU Number

DIAMETER

DECIMAL EQUIV.

OVERALL LENGTH

02-96499

#30

.1285"

5/8" (16 mm)

02-96501

#21

.1590"

5/8" (16 mm)

02-96502

#13

.1850"

5/8" (16 mm)

02-96503

#10

.1935"

5/8" (16 mm)

02-96505

1/4"

.2500"

5/8" (16 mm)

02-96564

#30

.1285"

1" (25.4 mm)

02-96565

#21

.1590"

1" (25.4 mm)

02-96566

#13

.1850"

1" (25.4 mm)

02-96567

#10

.1935"

1" (25.4 mm)

02-96568

1/4"

.2500"

1" (25.4 mm)

SKU Number

DRILL SIZES

DECIMAL EQUIVALENT

02-2971-1/4

1/4"

.2500"

02-2971-1/8

1/8"

.1250"

02-2971-17/64

17/64"

.2656"

02-2971-3/16

3/16"

.1875"

02-2971-3/32

3/32"

.0938"

02-2971-3/8

3/8"

.3750"

02-2971-5/16

5/16"

.3125"

02-2971-5/32

5/32"

.1562"

02-2971-7/32

7/32"

.2188"

02-2971-9/32

9/32"

.2812"

02-2972-10

#10

.1935"

02-2972-11

#11

.1910"

02-2972-16

#16

.1770"

02-2972-20

#20

.1610"

02-2972-21

#21

.1590"

02-2972-27

#27

.1440"

02-2972-3

#3

.2130"

02-2972-30

#30

.1285"

02-2972-40

#40

.0980"

02-2973-D

D

.2460"

02-2973-F

F

.2570"

02-2973-G

G

.2610"

02-2973-J

J

.2770"

02-2974-2.3

2.3 mm

.0906"

02-2974-3.17

3.17 mm

.1248"