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

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

A wide tip makes good contact in shallow and coated screw recesses, such as those filled with paint.

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.

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

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

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.

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.

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

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

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

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

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

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

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

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.

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

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.

Use with screws that have two drilled holes.

These are also known as TP3® bits.

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

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

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

The tip is shaped like an eight-pointed star.

A three-winged tip fits triangular slotted screw recesses.

Turn screws that have the tamper-resistant asymmetrical drive exclusive to McMaster-Carr.

A magnet or retaining ring holds the nut in place.

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.

Assortments contain bits with multiple drive styles.

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

These bits are also known as nut setters.

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

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

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

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.

These bits have an offset cross shape.

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

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

A magnet holds the socket, making changes quicker.

Prevent overtightening that can damage fasteners. These adapters spring back slightly when the set torque is reached.

Achieve the best possible grip on hex fasteners and prevent rounding.

Pivot the head to access fasteners from an angle.

With a smaller OD than standard sockets, these fit between tightly spaced fasteners.

Quickly position these sockets on square fasteners.

Pivot the head to access fasteners from an angle.

Made of aluminum-bronze, these sockets satisfy OSHA requirements that specify nonsparking tools for locations where flammable vapors and combustible residues are present.

Use these sockets as an alternative to a screwdriver or L-key. They are made to withstand the high torque and force of impact tools.

Pivot the head to access fasteners from an angle.

Lock your socket into the extension to prevent accidental disengagement.

Convert from one square drive size to another.

Remove and install dual wheels on trucks and trailers with the sockets in these sets.

A quick-change mechanism allows fast bit changes.

Insert these bits directly into power screwdrivers, impact drivers, and other tools that accept 1/4" hex shanks.

These bits have a round or hex shank that fits into the three-jaw chuck on a hammer drill.

These hollow bits cut with their outside edge for drilling holes larger than 1 1/2" in diameter.

Insert these bits directly into power screwdrivers, impact drivers, and other tools that accept 1/4" hex shanks.

Also known as spade bits, these have a centering point and two cutting edges for boring holes in hard and soft wood.

With better heat and wear resistance than high-speed steel, cobalt steel bits can run up to 25% faster and have a longer tool life.

Insert these bits directly into power screwdrivers, impact drivers, and other tools that accept 1/4" hex shanks.

These bits have a round or hex shank that fits into the three-jaw chuck on a hammer drill.

Also known as spade bits, these have a centering point and two cutting edges for boring holes in hard and soft wood.