IRWIN 4 Reference Guide
www.irwin.com
Fastener Drive & Screwdriving
FA
ST
EN
ER
D
RIVE
94
Phillips Bit Selection
The chart below shows the proper Phillips bit to use for driving each type of fastener.
Find the screw type and size you are driving. The column at the far left lists the proper point size to use.
Tools Manufactured for Strength and Value
Industry-Specific Screwdriver Bits
Fastener heads are often designed for the particular needs of specific applications and industries. The table below identifies the most common fastener
styles used in each industry. All IRWIN fastener drive bits are manufactured to meet ANSI standards.
Features
• Made of high-grade S2 tool steel.
• Wide variety of point sizes to fit many different
• Wide variety of point sizes to fit many different
applications.
• On the Rockwell hardness scale, IRWIN bits are
between 58-62.
INDUSTRY PROFILE
Appliance
Automotive
Aviation
Cabinetry
Cabinetry
Construction
Control
Control
Panels
Decking
Drywall
Electronics
Electronics
Furniture
Hobby
HVACR
Machine
Tools/Metal
Manufactured
Housing
Marine
Recreation
Security
Subfloor
®
TRI-WING, POZIDRIV, TORQ-SET, and Phillips are registered trademarks of the Phillips Screw Company.
®
TORX is a registered trademark of Acument Intellectual Properties, LLC.
Phillips
®
Slotted
Square Recess
TORX
®
Tamper
Resistant
TORX
®
Hex
POZIDRIV
®
TORQ-SET
®
TRI-WING
®
Spanner
Frearson
Clutch
G
Clutch
A
APPLICATION
Wood
Sheet Metal
Machine
Screw Type:
Flat, Oval
Round
Flat, Oval,
Binding
Flat, Oval, Round,
Stove, Binding
Round Fillister
Truss
Brazier Button
Phillips Bit Point Size
Size
Size
Size
0
0, 1
0, 1
0, 1
0, 1
0, 1
0, 1
1
2, 3, 4
2, 3, 4
2, 3, 4
2, 3, 4
2, 3, 4
2, 3, 4, 5
2
5, 6, 7, 8, 9
5, 6, 7, 8, 9, 10
5, 6, 7, 8, 9, 10
5, 6, 7, 8, 9, 10
5, 6, 7, 8, 9, 10
6, 8, 10
3
10, 12, 14, 16
12, 14, 16
12, 14
12, 14
12, 1/4", 5/16"
12, 1/4"
4
18, 20, 24
18, 20, 24
5/16", 3/8", 7/16", 1/2"
—
3/8", 7/16", 1/2"
5/16", 3/8", 7/16", 1/2"