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Step Drill Bit Set, High Speed Steel, 1/8 to 3/4 in, 3 Pieces

  • Mfr # 15502

  • Zoro # G1791291

product price:  $103.99
/ea
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Key Features

Number of Pieces
3
Cutting Direction
Right Hand
Drill Bit Point Angle
135 Degrees
Drill Bit Material
High Speed Steel
Includes
15101 (1/8 in to 1/2 in), 15102 (3/16 in to 1/2 in), 15103 (1/4 in to 3/4 in)
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Specifications

Product Information

MFR #
15502
Zoro #
G1791291
UPC #
038548155029
Country of Origin
United States

Dimensions

Size Range
1/4 in to 3/4 in, 1/8 in to 1/2 in, 3/16 in to 1/2 in
Step Thickness
5/32 in, 3/8 in
Number of Hole Sizes
28
Bit Length
2-3/4", 3-1/8"
Overall Length
2 1/2 in, 3 3/16 in, 3 1/4 in
Drill Bit Dimension Type
Fractional Inch
Shank Size
1/4 in, 3/8 in
Sizes Included
1/8", 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 13/32", 7/16", 15/32", 1/2"; 3/16", 1/4", 5/16", 3/8", 7/16", 1/2"; 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4"
Flute Length
1 1/2 in, 2 in, 2 3/16 in
Drill Bit Sizes Included
1/8 in, 5/32 in, 3/16 in, 7/32 in, 1/4 in, 9/32 in, 5/16 in, 11/32 in, 3/8 in, 13/32 in, 7/16 in, 15/32 in, 1/2 in, 9/16 in, 5/8 in, 11/16 in, 3/4 in
Shank Hex Size
1/4 in
Minimum Hole Size
1/8 in
Number Hole Sizes
17
Maximum Hole Size
3/4 in
Shank Diameter
3/8 in
Shank Length
5/8 in, 3/4 in
Largest Drill Bit Size
3/4 in
Smallest Drill Bit Size
1/8 in

Details

Item
Step Drill Bit Set
Number of Pieces
3
Cutting Direction
Right Hand
Drill Bit Point Angle
135 Degrees
Drill Bit Material
High Speed Steel
Includes
15101 (1/8 in to 1/2 in), 15102 (3/16 in to 1/2 in), 15103 (1/4 in to 3/4 in)
Shank Shape
Three-Flat
Number of Flutes
1
Shank Type
Hex
Decimal Equivalent
0.125, 0.1563, 0.1875, 0.2188, 0.25, 0.2813, 0.3125, 0.3438, 0.375, 0.4063, 0.4375, 0.4688, 0.5, 0.5625, 0.625, 0.6875, 0.75
Impact Rated
Not Impact Rated
Measurement System
Fractional Inch
Material - Machining
High Speed Steel
Primary Material Application
Brass, Copper, Wood, Steel, Plastic
Finish - Machining
TiN
Step Increments
1/32 in, 1/16 in
Shank Type - Machining
Straight with Three Flats
Sub Brand
Unibit
Series
UNIBIT
Number of Drill Bits
3
Drill Bit Point Type
Speed Point
Drill Bit Case Type
Pouch

Description

The IRWIN 15502 Step Drill Bit Set from the UNIBIT series includes three high speed steel step drill bits sized for fractional inch hole enlargements from 1/8 inch to 3/4 inch. The bits have a Titanium Nitride (TiN) finish and a 135-degree point angle and are specified for drilling the listed materials: brass, copper, wood, steel, and plastic. Each bit has a single flute for cutting and increments that allow step drilling with thicknesses between 5/32 inch and 3/8 inch. The bits have stepped diameters for hole enlargement within the stated size range.

Key Features:

  • Largest drill bit size: 3/4 inch; smallest: 1/8 inch.
  • High speed steel construction with a Titanium Nitride (TiN) finish.
  • Shanks include 1/4 inch and 3/8 inch hexagonal shapes with three-flat design for secure grip.
  • Overall lengths range from 2 1/2 inches to 3 1/4 inches, with flute lengths between 1 1/2 inches and 2 3/16 inches.
  • Included sizes cover multiple ranges: 1/8 to 1/2 inch, 3/16 to 1/2 inch, and 1/4 to 3/4 inch.

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