Page 530 Penn Tool Co. Precision Tooling Buyer's Guide 2019
P. 530
528
Self-Starting Single
Hole Step Drills
• UNIBIT Step Drills have an exclusive
single radial concave flute.
• This design allows the drilling of perfectly
round holes in thin materials quickly and
with less effort.
• Each bit is constructed of industrial
grade high speed molybdenum steel,
and is heat treated to a hardness of
between 61 - 63 RC. This assures
maximum strength and long life.
HOLE SHANK PART
PRICE
SIZE
SIZE
NUMBER
EACH
⁄ "
3 8
1
⁄ "
4
81-784-1
$19.30
⁄ "
1 2
1
⁄ "
4
54-328-0
24.45
⁄ "
7 8
3
⁄ "
8
54-332-2
50.30
1 ⁄ "
1 8
1
⁄ "
2
54-335-5
85.10
1 ⁄ "
7
32
1
⁄ "
2
81-783-3
76.80
54-328-0
Self-Starting Step Drills
• Multiple Hole Sizes UNIBIT Step Drills have an exclusive
single radial concave flute.
• Allows the drilling of perfectly round holes in thin materials
quickly and with less effort.
• Each bit is constructed of industrial grade high speed
molybdenum steel, and is heat treated to a hardness of between
61 and 63 on the Rockwell "C" scale. This assures maximum
strength and long life.
• Use for steel, copper, brass, aluminum and other thin materials.
• Also ideal for drilling through wood, composition board, and even
plexiglass and plastics which often crack with standard twist drills.
• Handle thicker materials by drilling from both sides of
work surface.
• Use for reaming, deburring and cutting through soft wood
or plasterboard.
HSS Self-Starting Step Drill
SIZE RANGE
NO. OF
SHANK STEP
PART
PRICE
MIN. MAX. HOLE SIZE
DIA.
THICK. NUMBER
EACH
⁄ "
1 8
1
⁄ "
2
13
1
⁄ "
4
1
⁄ "
8
54-321-5
$27.20
⁄ " 3
16
1
⁄ "
2
6
1
⁄ "
4
3
⁄ "
8
54-324-9
27.20
⁄ "
1 4
3
⁄ "
4
9
3
⁄ "
8
1
⁄ "
8
54-323-1
49.45
⁄ " 3
16
7
⁄ "
8
12
3
⁄ "
8
1
⁄ "
8
54-322-3
59.00
⁄ " 1 ⁄ "
1 4
3 8
10
1
⁄ "
2
1
⁄ "
8
54-325-6
103.60
TiN Coated Self-Starting Step Drill
SIZE RANGE
NO. OF
SHANK STEP
PART
PRICE
MIN. MAX. HOLE SIZE
DIA.
THICK. NUMBER
EACH
⁄ "
1 8
1
⁄ "
2
13
1
⁄ "
4
1
⁄ "
8
54-326-4
$37.45
⁄ " 3
16
1
⁄ "
2
6
1
⁄ "
4
3
⁄ "
8
54-330-6
37.45
⁄ "
1 4
3
⁄ "
4
9
3
⁄ "
8
1
⁄ "
8
54-329-8
66.50
⁄ " 3
16
7
⁄ "
8
12
3
⁄ "
8
1
⁄ "
8
54-327-2
80.40
i
ve
54-324-9
54-321-5
54-323-1
HSS Step Drill Set
• 28 hole sizes with just 3 bits.
• Self starting multiple hole sizes.
•
1
⁄ - ⁄ " x 32nds
8
1 2
•
3
⁄ - ⁄ " x 16ths
16
1 2
•
1
⁄ - ⁄ " x 16ths
4
3 4
DESCRIPTION
PART NO..
PRICEE
UNIBIT Step Drill Sets
®
54-320-7
$89.755
t
NO
P
RI
C
0
7
$
89
7
54-320-7
Hole-Enlarging Step Drills
• UNIBIT Step Drills have an exclusive
single radial concave flute.
• This design allows the drilling of
perfectly round holes in thin materials
quickly and with less effort.
• Each bit is constructed of industrial
grade high speed molybdenum steel,
and is heat treated to a hardness of
between 61 - 63 RC. This assures
maximum strength and long life.
• Shank size: ⁄ ".
1 2
• Step thick: ⁄ ".
1 8
HOLE
NO. OF
PART
PRICE
INCH SIZE
HOLE SIZES NUMBER
EACH
9
⁄ " - 1"
16
8
54-331-4
$53.05
13
⁄ " - 1 ⁄ "
16
3
16
10
54-334-8
113.20
54-331-4
•
1
⁄ " straight shank.
2
NOMINAL FACE
OLD AMERICAN
HSS
M-42 COBALT
DIA.
W
OAL
STD.
STD.
PART NO.
PRICE EA.
PART NO.
PRICE EA.
1
⁄ "
4
1
⁄ " 2 ⁄ " 201
16
1
16
202
42-997-7
$16.35
43-038-9
$22.70
5
⁄ "
16
1
⁄ " 2 ⁄ " 206
16
1
16
202 ⁄
1 2
42-998-5
16.35
43-039-7
23.10
5
⁄ "
16
3
⁄ " 2 ⁄ " 207
32
3
32
302 ⁄
1 2
42-999-3
16.35
43-040-5
22.70
3
⁄ "
8
1
⁄ " 2 ⁄ " 211
16
1
16
203
43-000-9
16.35
43-041-3
22.80
3
⁄ "
8
3
⁄ " 2 ⁄ " 212
32
3
32
303
43-001-7
16.35
43-042-1
22.70
3
⁄ "
8
1
⁄ "
8
2 ⁄ " 213 1 8
403
43-002-5
16.35
43-043-9
22.70
1
⁄ "
2
1
⁄ " 2 ⁄ "
16
1
16
1
204
43-003-3
13.50
43-044-7
23.20
1
⁄ "
2
3
⁄ " 2 ⁄ "
32
3
32
2
304
43-004-1
13.50
43-045-4
23.20
1
⁄ "
2
1
⁄ "
8
2 ⁄ "
1 8
3
404
43-005-8
13.50
43-046-2
23.20
5
⁄ "
8
3
⁄ " 2 ⁄ "
32
3
32
4
305
43-006-6
13.50
43-047-0
23.20
5
⁄ "
8
1
⁄ "
8
2 ⁄ "
1 8
5
405
43-007-4
13.50
43-048-8
23.20
5
⁄ "
8
5
⁄ " 2 ⁄ "
32
5
32
6
505
43-008-2
13.50
43-049-6
23.60
5
⁄ "
8
3
⁄ " 2 ⁄ "
16
3
16
61
605
43-009-0
13.50
43-050-4
23.20
3
⁄ "
4
1
⁄ "
8
2 ⁄ "
1 8
7
406
43-010-8
15.25
43-051-2
26.25
3
⁄ "
4
5
⁄ " 2 ⁄ "
32
5
32
8
506
43-011-6
16.90
—
—
3
⁄ "
4
1
⁄ "
4
2 ⁄ "
1 4
91
806
43-012-4
16.90
43-052-0
29.10
3
⁄ "
4
3
⁄ " 2 ⁄ "
16
3
16
9
606
43-013-2
16.90
43-053-8
29.10
7
⁄ "
8
5
⁄ " 2 ⁄ "
32
5
32
10
507
43-014-0
17.55
43-054-6
30.40
7
⁄ "
8
3
⁄ " 2 ⁄ "
16
3
16
11
607
43-015-7
17.50
43-055-3
25.70
7
⁄ "
8
7
⁄ " 2 ⁄ "
32
7
32
12
707
43-016-5
18.85
—
—
7
⁄ "
8
1
⁄ "
4
2 ⁄ "
1 4
A
807
43-017-3
18.25
43-056-1
27.45
1"
3
⁄ " 2 ⁄ "
16
3
16
13
608
43-018-1
18.80
43-057-9
32.20
1"
7
⁄ " 2 ⁄ "
32
7
32
14
708
43-019-9
21.10
43-058-7
32.80
1"
3
⁄ "
8
2 ⁄ " 152 3 8
1208
43-020-7
21.30
43-059-5
37.35
1"
1
⁄ "
4
2 ⁄ "
1 4
15
808
43-021-5
21.30
43-060-3
30.90
1"
5
⁄ " 2 ⁄ "
16
5
16
B
1008
43-022-3
21.95
43-061-1
32.60
1 ⁄ "
1 8
3
⁄ " 2 ⁄ "
16
3
16
16
609
43-023-1
23.20
43-062-9
34.50
1 ⁄ "
1 8
7
⁄ " 2 ⁄ "
32
7
32
17
709
43-024-9
23.20
—
—
1 ⁄ "
1 8
1
⁄ "
4
2 ⁄ "
1 4
18
809
43-025-6
22.70
43-063-7
34.50
1 ⁄ "
1 8
5
⁄ " 2 ⁄ "
16
5
16
C
1009
43-026-4
25.95
—
—
1 ⁄ "
1 4
3
⁄ " 2 ⁄ "
16
3
16
19
610
43-027-2
22.65
43-064-5
40.25
1 ⁄ "
1 4
7
⁄ " 2 ⁄ "
32
7
32
20
710
43-028-0
25.50
—
—
1 ⁄ "
1 4
1
⁄ "
4
2 ⁄ "
1 4
21
810
43-029-8
25.05
43-065-2
41.95
1 ⁄ "
1 4
5
⁄ " 2 ⁄ "
16
5
16
D
1010
43-030-6
27.65
43-066-0
40.95
1 ⁄ "
1 4
3
⁄ "
8
2 ⁄ "
3 8
E
1210
43-031-4
27.25
43-067-8
40.95
1 ⁄ "
3 8
1
⁄ "
4
2 ⁄ "
1 4
22
811
43-032-2
25.05
43-068-6
40.95
1 ⁄ "
3 8
5
⁄ " 2 ⁄ "
16
5
16
23
1011
43-033-0
30.25
—
—
1 ⁄ "
3 8
3
⁄ "
8
2 ⁄ "
3 8
F
1211
43-034-8
29.70
43-069-4
44.60
1 ⁄ "
1 2
1
⁄ "
4
2 ⁄ "
1 4
24
812
43-035-5
25.05
43-070-2
45.85
1 ⁄ "
1 2
5
⁄ " 2 ⁄ "
16
5
16
25
1012
43-036-3
29.15
43-071-0
44.60
1 ⁄ "
1 2
3
⁄ "
8
2 ⁄ "
3 8
G
1212
43-037-1
32.75
43-072-8
47.55
R
HSS & M-42 Cobalt
Straight Tooth
Woodruff Key
Seat Cutters
43-025-6
Self-Starting Single
Hole Step Drills
• UNIBIT Step Drills have an exclusive
single radial concave flute.
• This design allows the drilling of perfectly
round holes in thin materials quickly and
with less effort.
• Each bit is constructed of industrial
grade high speed molybdenum steel,
and is heat treated to a hardness of
between 61 - 63 RC. This assures
maximum strength and long life.
HOLE SHANK PART
PRICE
SIZE
SIZE
NUMBER
EACH
⁄ "
3 8
1
⁄ "
4
81-784-1
$19.30
⁄ "
1 2
1
⁄ "
4
54-328-0
24.45
⁄ "
7 8
3
⁄ "
8
54-332-2
50.30
1 ⁄ "
1 8
1
⁄ "
2
54-335-5
85.10
1 ⁄ "
7
32
1
⁄ "
2
81-783-3
76.80
54-328-0
Self-Starting Step Drills
• Multiple Hole Sizes UNIBIT Step Drills have an exclusive
single radial concave flute.
• Allows the drilling of perfectly round holes in thin materials
quickly and with less effort.
• Each bit is constructed of industrial grade high speed
molybdenum steel, and is heat treated to a hardness of between
61 and 63 on the Rockwell "C" scale. This assures maximum
strength and long life.
• Use for steel, copper, brass, aluminum and other thin materials.
• Also ideal for drilling through wood, composition board, and even
plexiglass and plastics which often crack with standard twist drills.
• Handle thicker materials by drilling from both sides of
work surface.
• Use for reaming, deburring and cutting through soft wood
or plasterboard.
HSS Self-Starting Step Drill
SIZE RANGE
NO. OF
SHANK STEP
PART
PRICE
MIN. MAX. HOLE SIZE
DIA.
THICK. NUMBER
EACH
⁄ "
1 8
1
⁄ "
2
13
1
⁄ "
4
1
⁄ "
8
54-321-5
$27.20
⁄ " 3
16
1
⁄ "
2
6
1
⁄ "
4
3
⁄ "
8
54-324-9
27.20
⁄ "
1 4
3
⁄ "
4
9
3
⁄ "
8
1
⁄ "
8
54-323-1
49.45
⁄ " 3
16
7
⁄ "
8
12
3
⁄ "
8
1
⁄ "
8
54-322-3
59.00
⁄ " 1 ⁄ "
1 4
3 8
10
1
⁄ "
2
1
⁄ "
8
54-325-6
103.60
TiN Coated Self-Starting Step Drill
SIZE RANGE
NO. OF
SHANK STEP
PART
PRICE
MIN. MAX. HOLE SIZE
DIA.
THICK. NUMBER
EACH
⁄ "
1 8
1
⁄ "
2
13
1
⁄ "
4
1
⁄ "
8
54-326-4
$37.45
⁄ " 3
16
1
⁄ "
2
6
1
⁄ "
4
3
⁄ "
8
54-330-6
37.45
⁄ "
1 4
3
⁄ "
4
9
3
⁄ "
8
1
⁄ "
8
54-329-8
66.50
⁄ " 3
16
7
⁄ "
8
12
3
⁄ "
8
1
⁄ "
8
54-327-2
80.40
i
ve
54-324-9
54-321-5
54-323-1
HSS Step Drill Set
• 28 hole sizes with just 3 bits.
• Self starting multiple hole sizes.
•
1
⁄ - ⁄ " x 32nds
8
1 2
•
3
⁄ - ⁄ " x 16ths
16
1 2
•
1
⁄ - ⁄ " x 16ths
4
3 4
DESCRIPTION
PART NO..
PRICEE
UNIBIT Step Drill Sets
®
54-320-7
$89.755
t
NO
P
RI
C
0
7
$
89
7
54-320-7
Hole-Enlarging Step Drills
• UNIBIT Step Drills have an exclusive
single radial concave flute.
• This design allows the drilling of
perfectly round holes in thin materials
quickly and with less effort.
• Each bit is constructed of industrial
grade high speed molybdenum steel,
and is heat treated to a hardness of
between 61 - 63 RC. This assures
maximum strength and long life.
• Shank size: ⁄ ".
1 2
• Step thick: ⁄ ".
1 8
HOLE
NO. OF
PART
PRICE
INCH SIZE
HOLE SIZES NUMBER
EACH
9
⁄ " - 1"
16
8
54-331-4
$53.05
13
⁄ " - 1 ⁄ "
16
3
16
10
54-334-8
113.20
54-331-4
•
1
⁄ " straight shank.
2
NOMINAL FACE
OLD AMERICAN
HSS
M-42 COBALT
DIA.
W
OAL
STD.
STD.
PART NO.
PRICE EA.
PART NO.
PRICE EA.
1
⁄ "
4
1
⁄ " 2 ⁄ " 201
16
1
16
202
42-997-7
$16.35
43-038-9
$22.70
5
⁄ "
16
1
⁄ " 2 ⁄ " 206
16
1
16
202 ⁄
1 2
42-998-5
16.35
43-039-7
23.10
5
⁄ "
16
3
⁄ " 2 ⁄ " 207
32
3
32
302 ⁄
1 2
42-999-3
16.35
43-040-5
22.70
3
⁄ "
8
1
⁄ " 2 ⁄ " 211
16
1
16
203
43-000-9
16.35
43-041-3
22.80
3
⁄ "
8
3
⁄ " 2 ⁄ " 212
32
3
32
303
43-001-7
16.35
43-042-1
22.70
3
⁄ "
8
1
⁄ "
8
2 ⁄ " 213 1 8
403
43-002-5
16.35
43-043-9
22.70
1
⁄ "
2
1
⁄ " 2 ⁄ "
16
1
16
1
204
43-003-3
13.50
43-044-7
23.20
1
⁄ "
2
3
⁄ " 2 ⁄ "
32
3
32
2
304
43-004-1
13.50
43-045-4
23.20
1
⁄ "
2
1
⁄ "
8
2 ⁄ "
1 8
3
404
43-005-8
13.50
43-046-2
23.20
5
⁄ "
8
3
⁄ " 2 ⁄ "
32
3
32
4
305
43-006-6
13.50
43-047-0
23.20
5
⁄ "
8
1
⁄ "
8
2 ⁄ "
1 8
5
405
43-007-4
13.50
43-048-8
23.20
5
⁄ "
8
5
⁄ " 2 ⁄ "
32
5
32
6
505
43-008-2
13.50
43-049-6
23.60
5
⁄ "
8
3
⁄ " 2 ⁄ "
16
3
16
61
605
43-009-0
13.50
43-050-4
23.20
3
⁄ "
4
1
⁄ "
8
2 ⁄ "
1 8
7
406
43-010-8
15.25
43-051-2
26.25
3
⁄ "
4
5
⁄ " 2 ⁄ "
32
5
32
8
506
43-011-6
16.90
—
—
3
⁄ "
4
1
⁄ "
4
2 ⁄ "
1 4
91
806
43-012-4
16.90
43-052-0
29.10
3
⁄ "
4
3
⁄ " 2 ⁄ "
16
3
16
9
606
43-013-2
16.90
43-053-8
29.10
7
⁄ "
8
5
⁄ " 2 ⁄ "
32
5
32
10
507
43-014-0
17.55
43-054-6
30.40
7
⁄ "
8
3
⁄ " 2 ⁄ "
16
3
16
11
607
43-015-7
17.50
43-055-3
25.70
7
⁄ "
8
7
⁄ " 2 ⁄ "
32
7
32
12
707
43-016-5
18.85
—
—
7
⁄ "
8
1
⁄ "
4
2 ⁄ "
1 4
A
807
43-017-3
18.25
43-056-1
27.45
1"
3
⁄ " 2 ⁄ "
16
3
16
13
608
43-018-1
18.80
43-057-9
32.20
1"
7
⁄ " 2 ⁄ "
32
7
32
14
708
43-019-9
21.10
43-058-7
32.80
1"
3
⁄ "
8
2 ⁄ " 152 3 8
1208
43-020-7
21.30
43-059-5
37.35
1"
1
⁄ "
4
2 ⁄ "
1 4
15
808
43-021-5
21.30
43-060-3
30.90
1"
5
⁄ " 2 ⁄ "
16
5
16
B
1008
43-022-3
21.95
43-061-1
32.60
1 ⁄ "
1 8
3
⁄ " 2 ⁄ "
16
3
16
16
609
43-023-1
23.20
43-062-9
34.50
1 ⁄ "
1 8
7
⁄ " 2 ⁄ "
32
7
32
17
709
43-024-9
23.20
—
—
1 ⁄ "
1 8
1
⁄ "
4
2 ⁄ "
1 4
18
809
43-025-6
22.70
43-063-7
34.50
1 ⁄ "
1 8
5
⁄ " 2 ⁄ "
16
5
16
C
1009
43-026-4
25.95
—
—
1 ⁄ "
1 4
3
⁄ " 2 ⁄ "
16
3
16
19
610
43-027-2
22.65
43-064-5
40.25
1 ⁄ "
1 4
7
⁄ " 2 ⁄ "
32
7
32
20
710
43-028-0
25.50
—
—
1 ⁄ "
1 4
1
⁄ "
4
2 ⁄ "
1 4
21
810
43-029-8
25.05
43-065-2
41.95
1 ⁄ "
1 4
5
⁄ " 2 ⁄ "
16
5
16
D
1010
43-030-6
27.65
43-066-0
40.95
1 ⁄ "
1 4
3
⁄ "
8
2 ⁄ "
3 8
E
1210
43-031-4
27.25
43-067-8
40.95
1 ⁄ "
3 8
1
⁄ "
4
2 ⁄ "
1 4
22
811
43-032-2
25.05
43-068-6
40.95
1 ⁄ "
3 8
5
⁄ " 2 ⁄ "
16
5
16
23
1011
43-033-0
30.25
—
—
1 ⁄ "
3 8
3
⁄ "
8
2 ⁄ "
3 8
F
1211
43-034-8
29.70
43-069-4
44.60
1 ⁄ "
1 2
1
⁄ "
4
2 ⁄ "
1 4
24
812
43-035-5
25.05
43-070-2
45.85
1 ⁄ "
1 2
5
⁄ " 2 ⁄ "
16
5
16
25
1012
43-036-3
29.15
43-071-0
44.60
1 ⁄ "
1 2
3
⁄ "
8
2 ⁄ "
3 8
G
1212
43-037-1
32.75
43-072-8
47.55
R
HSS & M-42 Cobalt
Straight Tooth
Woodruff Key
Seat Cutters
43-025-6
