Page 263 Penn Tool Co. Precision Tooling 2014 Sale Catalog
P. 263
* Step sizes are 5, 7.5, 10, 13, 16, 19, 21, 23, 26, 29, 31, 33, 35mm
HIGH SPEED STEEL, TiN COATED or M35 COBALT STEP DRILLS & SETS
Uncoated, TiN Coated or Cobalt Ground From The Solid
Up to 13 different hole sizes without changing bits!
H.S.S. UNCOATED
TiN COATED
COBALT
Features:

Right hand (clockwise rotation) cutting direction.

Single straight flute design.

Multi-step design with progressively larger holes.

Self-starting or hole enlarging style.

Straight shank diameters of 1/4", 3/8" or 1/2" (6.5mm,
10mm or 13mm)

Made in USA
Cobalt

M35 grade provides high heat & abrasion resistance.

Longest cutting life.

6 times longer life vs. competition.
Technical Data:

Manufactured from high speed steel.

1/8" to 3/8" (3.5mm to 11mm)

Ground from solid.

Cylindrically ground.

Bright finish.
Applications:

Specialty step drill designed to machine a large number of
different hole diameters with a single tool.

Single cutting edge creates perfectly round holes in metal, plastic,
wood and other thin materials without center punching.

Conical design permits as many as 13 different size holes to be
drilled with one drill.

These drills, depending on the model, have a step 1/8" to 3/8"
(3.5mm to 11mm) thick between sizes.

Normally intended for use with thin materials.

Two general variations are available for either self-starting hole or
for enlarging existing holes.

20 different models are available to produce holes from 1/8" to 1-
3/8" or 4mm to 35mm.

The hardened, high speed steel drill body is available in either an
uncoated style or with a TiN coating for longer life in tougher
materials.

Single flute design helps to ensure perfectly round holes in a wide
range of ferrous, non-ferrous and non-metallic materials.
Inch• Self-Starting
Multiple Hole Sizes
Metric• Self-Starting
Multiple Hole Sizes
Inch
Hole Enlarging Bits
Metric• Hole
Enlarging Bits
STEP DRILL SETS
• High Speed Steel
• Tin Coated
• Cobalt
Comparative Life Test in Stainless Steel
Cobalt
TiN
H.S.S. Competitor A
Competitor B Competitor C
Average Number of Holes Before Failure
(In 16 Gauge Stainless Steel Plate)
Inch• Self Starting
Single Hole Size
Description
4 Piece Set, H.S.S. Steel, Uncoated
4 Piece Set, H.S.S. Steel with #1 TiN Coated #1, 2, 3 & #1T
3 Piece Set, H.S.S. Steel, Uncoated
3 Piece Set, TiN Coated
3 Piece Set, Cobalt
Contents
#1, 2, 4 & 21
#1, 2, & 3
#1T, 2T, & 3T
#1C, 2C, & 3C
Price
$159.50
87.50
69.95
75.00
92.95
Model
10225-1
10228
10502-1
105502ZR
10502CB
Cobalt
PENN TOOL CO.
TOLL FREE 1-800-526-4956 FAX 1-973-761-1494
Page 263
# of
Sizes
13
6
9
12
10
9
5
7
10
13
1
1
1
1
1
Hole Sizes
(& Increments)
1/8" to 1/2" by 32nds
3/16" to 1/2" by 1/16ths
1/4" to 3/4" by 1/16ths
3/16" to 7/8" by 1/16ths
1/4" to 1-3/8" by 1/8ths
4mm to 12mm by 1mm
4mm to 12mm by 2mm
6mm to 18mm by 2mm
4mm to 22mm by 2mm
5mm to 35mm by 2-3mm*
1/2"
7/8"
3/8"
1-1/8"
1-7/32"
Shank
Diameter
1/4"
1/4"
3/8"
3/8"
1/2"
6.5mm
6.5mm
10mm
10mm
13mm
1/4"
3/8"
1/4"
1/2"
1/2"
Step
Thickness
1/8"
3/8"
1/8"
1/8"
1/8"
5mm
11mm
5mm
5mm
3.5mm
-
-
-
-
-
Model
No.
#1
#2
#3
#4
#5
1M
2M
3M
4M
5M
#10
#11
#12
#13
#14
Order
No.
10231
10232
10233
10234
10235
11101-1
11102-1
11103-2
11104
11105-2
10310-2
10311-3
10312-3
10313-2
10314-2
Price
Each
$19.90
19.90
34.50
42.25
75.00
$18.95
29.50
35.75
42.25
71.50
$19.25
37.90
14.75
48.85
58.25
Order
No.
15101
15102
15103
15104
-
16101
16102-1
16103
16104
16105
-
-
-
-
-
Price
Each
$25.25
25.25
45.50
56.50
$26.25
26.25
47.75
56.50
100.00
Order
No.
10231CB
10232CB
10233CB
10234CB
-
11101CB
11102CB
11103CB
11104CB
-
-
-
-
-
-
Price
Each
$25.25
25.25
50.00
60.00
$27.95
27.95
49.95
59.50
SELF STARTING BITS
INCH- MULTIPLE HOLE SIZES
METRIC - MULTIPLE HOLE SIZES
INCH - SINGLE HOLE SIZES
UNCOATED
HOLE ENLARGING BITS
# of
Holes
8
10
6
8
Hole Sizes
(& Increments)
9/16" to 1"
13/16 to 1-3/8"
14mm to 24mm by 2mm
20mm to 34mm by 2mm
Shank
Diameter
1/2"
1/2"
13mm
13mm
Step
Thickness
1/8"
1/8"
5mm
5mm
Model
No.
#20
#21
20M
21M
Order
No.
10220
10221
11580
11581
Price
Each
$39.95
83.25
$40.25
83.30
Pilot Hole
Required
1/2"
3/4"
12mm
18mm
INCH
METRIC
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