Screwdriver Power Bits | McMaster-Carr

	For Drive Style For Drive Style


Phillips	Slotted

Hex	Square

Torx	External Hex

Phillips Terminal Screw	Pozidriv®

Torq-Set®	Drilled Spanner

Clutch	Frearson

JIS	Mortorq®

One Way	Pozidriv® Terminal Screw

Square/Phillips	Tamper- Resistant Hex

Tamper- Resistant Square	Tamper- Resistant Torx

Torx Plus	Triangle

Tri-Groove	Triple Square

Tri-Wing®

	Shank Type Shank Type

	Quick- Change Hex
	Hex

	System of Measurement System of Measurement

Inch

Metric

	Overall Length Overall Length

	Size Size

	Hex Shank Size Hex Shank Size

	Individual/Set Individual/Set

Individual

Set

	For Screw Size For Screw Size

	Tip Style Tip Style


Standard	Ball

	Material Material

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

DFARS Specialty Metals
COTS-Exempt

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

RoHS Compliant

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

REACH Compliant

	Container Type Container Type

Plastic Caddy

Plastic Case

Plastic Pouch

	Fastener-Holding Mechanism Fastener-Holding Mechanism

Magnet

Retaining Ring

	Bolt Clearance Bolt Clearance

	For Bit Hex Shank Size For Bit Hex Shank Size

	Number of Pieces Number of Pieces

	For Bit Shank Type For Bit Shank Type

	Hex
	Hex for Power Tools
	Half Moon
	HIOS

	Overall Diameter Overall Diameter

	Bit-Holding Mechanism Bit-Holding Mechanism

Magnet

Retaining Ring

Magnetic Quick-Change
Chuck

	Square Drive Size Square Drive Size

1/4"

3/8"

1/2"

	Height Height

639 Products

Screwdriver Bits

Phillips Bits

Strong and durable, these multipurpose bits are for use with bit screwdrivers. They are often used with power tools to install sheet metal screws.

High-Torque Phillips Bits

Less likely to crack or shatter under high torque than standard bits, these are often used with power tools to install machine screws.

Phillips Bits for Impact Drivers

The toughest bits available, these withstand the shock and twisting force of impact drivers.

Slip-Resistant Phillips Bits

Ribs forged into the wings of these bits grip the screw recess to reduce stripping. They're also known as ACR® bits.

Phillips Bits with Screw Guide

Remove screws in hard-to-reach places. A spring-loaded sleeve guides bits onto the screw head and keeps them from slipping out.

Tight-Clearance Phillips Bits

The small-diameter shaft can access screws in narrow recessed holes.

Depth-Limiting Phillips Bits

An exterior stop collar prevents fasteners from being driven too deep. Use with soft material such as drywall, wood, and fiberboard.

Slotted Bits

Strong and durable, these multipurpose bits are for use with bit screwdrivers. They are often used with power tools to install sheet metal screws.

Slotted Bits with Screw Guide

Remove screws in hard-to-reach places. A spring-loaded sleeve guides bits onto the screw head and keeps them from slipping out.

Hex Bits

Strong and durable, these multipurpose bits are for use with bit screwdrivers.

Hex Bits for Impact Drivers

The toughest bits available, these withstand the shock and twisting force of impact drivers.

Ball-End Hex Bits

When you don't have exact alignment between the fastener and the tool, the ball end allows angled entry to turn screws in hard-to-reach areas.

Ball-End Screw-Holding Hex Bits

When you don't have exact alignment between the fastener and the bit, the ball end allows angled entry to turn screws in hard-to-reach areas. A retaining ring grips inside the recess to hold screws in place.

Hex Bits for Stainless Steel Screws

Protect your stainless steel screws by using a stainless steel bit. If steel flakes off a standard bit and into the recess, it can lead to rust and contamination. These bits eliminate that risk.

Screw-Holding Hex Bits

A retaining ring at the tip grips inside the recess to ensure screws won't slip off the bit.

Square Bits

Strong and durable, these multipurpose bits are for use with bit screwdrivers. They're designed for screws with a square recess in the head and are also known as Robertson bits.

Square Bits for Impact Drivers

The toughest bits available, these withstand the shock and twisting force of impact drivers. Designed for screws with a square recess in the head, they are also known as Robertson bits.

Depth-Limiting Square Bits

An exterior stop collar prevents fasteners from being driven too deep. Use with soft materials such as drywall, wood, and fiberboard.

Phillips Terminal Screw Bits

These bits provide a secure grip on the Phillips/slotted combination-drive screws in electrical equipment.

Torx Bits

Strong and durable, these multipurpose bits are often used with power tools to install sheet metal screws.

Torx Bits for Impact Drivers

The toughest bits available, these withstand the shock and twisting force of impact drivers.

Pozidriv® Bits for Impact Drivers

The toughest bits available, these withstand the shock and twisting force of impact drivers.

Ball-End Torx Bits

When you don't have exact alignment between the fastener and the tool, the ball end allows angled entry to turn screws in hard-to-reach areas.

Pozidriv® Bits

Strong and durable, these multipurpose bits are for use with bit screwdrivers.

Screw-Holding Torx Bits

The slightly tapered tip wedges into the screw recess for a secure hold. Also known as Torx-Align bits.

Drilled Spanner Bits

Use with screws that have two drilled holes.

Triple Square Bits

These bits are shaped like a 12-pointed star. They're also known as XZN bits.

Tamper-Resistant Square Bits

An opening at the tip accommodates the pin in the recess of tamper-resistant square screws.

Tamper-Resistant Hex Bits

An opening at the tip accommodates the pin in the recess of tamper-resistant hex screws. These are also known as pin-in-hex or pin-in-socket bits.

Torq-Set® Bits

These bits have an offset cross shape. They’re also known as ACR® bits.

Pozidriv® Terminal Screw Bits

Tamper-Resistant Torx Bits

An opening at the tip accommodates the pin in the recess of tamper-resistant Torx screws. These are also known as pin-in-Torx bits.

Frearson Bits

Also known as Reed and Prince bits.

JIS Bits

Torx-Plus Bits

The six rounded points fit the star-shaped recess of Torx-Plus screws. These bits have a similar profile to Torx but are not recommended for use with standard Torx screws.

Mortorq® Bits

Triangle Bits

Slip-Resistant Torq-Set® Bits

Ribs forged into the wings of these offset-cross-shaped bits grip the screw recess to reduce stripping. They are also known as ACR® bits.

Square/Phillips Bits

While screws with a Square/Phillips combination drive can be turned with either a Square or Phillips bit, these make the best contact so you can apply high torque without slipping and stripping the recess. They are also known as Quadrex bits.

Tri-Groove Bits

Grip the indentations on the head of tri-groove fasteners.

Clutch Bits

These are also known as known as butterfly and Type G bits.

Tri-Wing® Bits

A three-winged tip fits triangular slotted screw recesses.

Nutdriver Bits

Turn hex nuts and cap screws.

Extra-Grip Fastener-Holding Nutdriver Bits

Because they make contact on the flat sides of fasteners rather than only on the corners, these magnetic bits significantly reduce slipping and stripping. They’re also known as lobular bits.

Fastener-Holding Nutdriver Bits for Impact Drivers

The toughest bits available, these withstand the shock and twisting force of impact drivers. A magnet holds the nut in place.

Fastener-Holding Nutdriver Bits

A magnet or retaining ring holds the nut in place.

Wood Screw Threaded Stud Driver Bits

Use to install wood screw threaded studs (also known as dowel screws).

One-Way Screw Remover Bits

One-way screws can be installed with standard slotted screwdrivers but can only be removed with this type of bit.

Threaded Rod and Stud Driver Bits

Quickly install threaded rods and studs using a cordless drill, instead of doing it by hand.

Hanger Bolt Driver Bits

Turn the flat-end bolts and screws that are commonly used for wire guiding and hanging pipes and fixtures.

Wing Nut Driver Bits

A slot in these bits holds and turns wing nuts.

Eyebolt and Hook Driver Bits

Install and remove eyebolts and screw-in hooks.

Bit Organizers

Bit Organizing Trays

Store a variety of sizes and styles of bits and adapters in one compact tray.

Magnetic Bit Organizing Caddies

Mount the magnetic base to walls, cabinets, and other steel surfaces.

Bit Organizing Cases

Fit these small cases comfortably in your pocket.

Bit Organizing Caddies

Keep these caddies in your tool drawer or take them with you.

Bit Sets

Bit Assortments

Assortments contain bits with multiple drive styles.

Torq-Set® Bit Sets

These bits have an offset cross shape.

Torx-Plus Bit Sets

The six rounded points fit the star-shaped recess of Torx-Plus screws. These bits have a similar profile to Torx but are not recommended for use with standard Torx screws.

Tamper-Resistant Torx Bit Sets

An opening at the tip accommodates the pin in the recess of tamper-resistant Torx screws. These are also known as pin-in-Torx bits.

Screw-Holding Torx Bit Sets

The slightly tapered tip wedges into the screw recess for a secure hold. These are also known as Torx-Align bits.

Slotted Bit Sets

Drilled Spanner Bit Sets

Use with screws that have two drilled holes.

Tri-Groove Bit Sets

Grip the indentations on the head of tri-groove fasteners.

Ball-End Screw-Holding Hex Bit Sets

A retaining ring grips inside the recess to hold screws in place. These bits have a ball end that allows angled entry to drive screws in hard-to-reach areas.

Hex Bit Sets

Nutdriver Bit Sets

These bits are also known as nut setters.

Torx Bit Sets

Tamper-Resistant Hex Bit Sets

An opening at the tip accommodates the pin in the recess of tamper-resistant hex screws. These are also known as pin-in-hex or pin-in-socket bits.

Slip-Resistant Phillips Bit Sets

Ribs forged into the wings of these bits grip the screw recess to reduce stripping. They're also known as ACR® bits.

Ball-End Hex Bit Sets

When you don't have exact alignment between the fastener and the tool, the ball end allows angled entry to turn screws in hard-to-reach areas.

Fastener-Holding Nutdriver Bit Sets

A magnet holds the nut in place.

Square Bit Sets

Also known as Robertson bits these are designed for screws with a square recess in the head.

JIS Bit Sets

Designed for the fasteners used in electronics assembly, the tip of these bits has slightly sharper corners than Phillips style.

Phillips Bit Sets

Pozidriv® Bit Sets

Bit Adapters

Use hex-shank bits (also known as insert bits) in powered tools.

Secure-Hold Bit Adapters

Lock your bit into the adapter to prevent accidental disengagement. These adapters hold hex-shank bits (also known as insert bits) in powered tools.

Screw-Guiding Bit Adapters

Keep bits from slipping. Insert a bit into the adapter, place a screw on the end of the bit, and slide the adapter sleeve over the screw. The sleeve retracts as the screw is driven. These adapters hold hex-shank bits (also known as insert bits) in powered tools.

Flexible Bit Adapters

Bend these adapters up to 90° to access hard-to-reach fasteners. Use them to hold hex-shank bits (also known as insert bits) in powered tools.

Tight-Clearance Bit Adapters

The head is angled 90° to drive fasteners in tight spaces. Use these adapters to hold hex-shank bits (also known as insert bits) in powered tools.

Screw-Holding Bit Adapters

A magnetic ring at the end of the adapter holds flat-head screws in place to ensure good contact between the bit and screw. Use these adapters to hold hex-shank bits (also known as insert bits) in powered tools.

Bit Adapters for Impact Drivers

These adapters are designed to withstand the high torque of impact drivers. They hold hex-shank bits (also known as insert bits).

Hex Shank to Power Socket Square Drive and Impact Square Drive Adapters

Hex Shank to Power Socket Square
Drive and Impact Square Drive Adapters

Use sockets with tools that accept hex shanks, such as impact drivers and power drills.

Countersinking

Quick-Change Combination Countersinking
Drill and Screwdriver Bit Sets

Fasten differently sized screws with these sets. They save you the effort of switching three separate bits in and out of a power tool, instead letting you flip between a countersinking drill and a screwdriver bit with a single hand.

Quick-Change Combination
Countersinking Drill and Screwdriver Bits

Drill, countersink, and drive screws without switching three separate bits in and out of your power tool.