Drill Bit Gauges | McMaster-Carr

	For Use With For Use With

	For System of Measurement For System of Measurement

	For Drill Bit Size For Drill Bit Size

1/32"
3/64"
1/16"
5/64"
3/32"
7/64"
1/8"
9/64"
5/32"
11/64"
3/16"
13/64"
7/32"
15/64"
1/4"
17/64"
9/32"
19/64"
5/16"
21/64"
11/32"
23/64"
3/8"
25/64"
13/32"
27/64"
7/16"
29/64"
15/32"
31/64"
1/2"
1.5 mm
2.0 mm
2.25 mm
2.5 mm
2.75 mm
3.0 mm
3.25 mm
3.5 mm
3.75 mm
4.0 mm
4.25 mm
4.5 mm
4.75 mm
5.0 mm
5.25 mm
5.5 mm
6.0 mm
6.5 mm
7.0 mm
7.5 mm
8.0 mm
8.5 mm
9.0 mm
9.5 mm
10.0 mm
10.5 mm
11.0 mm
11.5 mm
12.0 mm
12.5 mm
1
2
3
4
5
5 ga
6
7
8
9
10
10 ga
11
12
13
14
15
15 ga
16
17
18
19
20
20 ga
21
22
23
24
25
25 ga
26
27
28
29
30
30 ga
31
32
33
34
35
35 ga
36
37
38
39
40
40 ga
41
42
43
44
45
45 ga
46
47
48
49
50
50 ga
51
52
53
54
55
55 ga
56
57
58
59
60
60 ga
61
62
63
64
65
65 ga
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z

	Material Material

Steel

Plastic

Stainless Steel

	For Pipe Size For Pipe Size

	Width Width

	Thickness Thickness

3/64"

5/64"

	For Pipe Fitting Size For Pipe Fitting Size

	For Pipe Material For Pipe Material

Brass

PVC

Steel

	For Tube Fitting Material For Tube Fitting Material

Copper

Plastic

	Height Height

3 1/2"

4 1/4"

6 1/2"

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	For Tube Fitting Size For Tube Fitting Size

	Ruler System of Measurement Ruler System of Measurement

Inch

Metric

	Ruler Graduation Marks Ruler Graduation Marks

64ths

Millimeters

	Ruler Numeric Increments Ruler Numeric Increments

8/64"

1 cm

	Graduation Marks Graduation Marks

	Numeric Increments Numeric Increments

10°

8/64"

1 cm

	For Wire Gauge For Wire Gauge

20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1

	For Copper Tube Size For Copper Tube Size

	For Screw Size For Screw Size

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

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9 Products

Drill Bit Size Identifiers

Inch

Letter

Metric

Wire Gauge

Measure drill bit sizes with these identifiers.

Drill/tap identifier includes a tap size conversion chart.

For System of Measurement	For Use With	For Drill Bit Size	Wd.	Ht.	Thick.	Material	Color	Mounting Hole Dia.		Each
Inch	Drills	1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 11/64", 3/16", 13/64", 7/32", 15/64", 1/4", 17/64", 9/32", 19/64", 5/16", 21/64", 11/32", 23/64", 3/8", 25/64", 13/32", 27/64", 7/16", 29/64", 15/32", 31/64", 1/2"	2 1/2"	6 1/2"	5/64"	Steel	Silver	1/8"	0000000	000000
Letter	Drills	A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z	2 1/2"	6 1/2"	5/64"	Steel	Silver	1/8"	0000000	00000
Metric	Drills	1.5 mm, 2.0 mm, 2.25 mm, 2.5 mm, 2.75 mm, 3.0 mm, 3.25 mm, 3.5 mm, 3.75 mm, 4.0 mm, 4.25 mm, 4.5 mm, 4.75 mm, 5.0 mm, 5.5 mm, 6.0 mm, 6.5 mm, 7.0 mm, 7.5 mm, 8.0 mm, 8.5 mm, 9.0 mm, 9.5 mm, 10.0 mm, 10.5 mm, 11.0 mm, 11.5 mm, 12.0 mm, 12.5 mm, 5.25 mm	2 1/2"	6 1/2"	5/64"	Steel	Silver	1/8"	0000000	00000
Wire Gauge	Drills	80, 79, 78, 77, 76, 75, 74, 73, 72, 71, 70, 69, 68, 67, 66, 65, 64, 63, 62, 61	1"	3"	5/64"	Steel	Silver	1/8"	0000000	00000
Wire Gauge	Drills/Taps	60, 59, 58, 57, 56, 55, 54, 53, 52, 51, 50, 49, 48, 47, 46, 45, 44, 43, 42, 41, 40, 39, 38, 37, 36, 35, 34, 33, 32, 31, 30, 29, 28, 27, 26, 25, 24, 23, 22, 21, 20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1	2 1/2"	6 1/2"	5/64"	Steel	Silver	1/8"	0000000	00000

Drill Bit Point Identifiers

Verify 118° drill point angles after sharpening. The ruler has a hook for alignment.

	Ruler
For Use With	Lg.	Wd.	Front Graduation Marks (Numeric Increments)	Back Graduation Marks (Numeric Increments)	Lg.	Wd.	Thick.	Color	Graduation Color		Each
Inch
Steel
118° Drills	6"	3/4"	64ths (8/64"), 32nds (4/32")	8ths (1"), 16ths (1")	6 1/4"	2 5/32"	3/64"	Silver	Black	0000000	000000

All-in-One Identifiers

Find tube, pipe, fastener, wire, and drill bit sizes with one tool.

Plastic
For Use With (Number of Sizes)	Wd.	Ht.	Material		Each
Tube (9), Tube Fittings (6), Pipe (9), Pipe Fittings (6), Screws and Bolts (20), Threaded Rods, Nuts (14), Nails (11), Wire (30), Drill Bits (21)	8 11/16"	4 1/4"	Plastic	00000000	00000
Tube (11), Tube Fittings (10), Pipe (16), Pipe Fittings (10), Screws and Bolts (20), Threaded Rods, Nuts (20), Nails (16), Wire (51), Drill Bits (50)	10 1/2"	3 1/2"	Plastic	00000000	0000

Pocket-Size Protractors

Small enough to fit in your pocket, this versatile tool measures angles and dimensions and has a center finder. Also known as a bevel protractor, it has an adjustable arm. Protractor is corrosion-resistant stainless steel with wear-resistant etched markings.

			Arm			Graduation
Angle Measuring Range	Graduation Marks (Numeric Increments)	No. of Arms	Lg.	Wd.	Color	Color	Mark Style	Ruler Front Graduation Marks (Numeric Increments)	Features		Each
Inch/Metric
Stainless Steel
0°-180°	1° (10°)	1	4 1/2"	5/16"	Silver	Black	Etched	Millimeters (1 cm), 64ths (8/64")	59° Drill Point Gauge, Center Finder, Circle Divider, Tap and Drill Reference Table	0000000	000000