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

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

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.

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

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.

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 are often used with power tools to install sheet metal screws.

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

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.

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

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

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

Bits have a different size at each end.

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

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.

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.

Bits have a different size at each end.

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

Bits have a different size at each end. An opening at the tips accommodates the pin in the recess of tamper-resistant Torx screws. These are also known as pin-in-Torx bits.

Use with screws that have two drilled holes.

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

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

These are also known as TP3® 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.

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

Also known as Reed and Prince bits.

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

Also known as Polydrive bits.

Also known as Bristol bits, these have a knurled-end shank that allows finger tightening.

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.

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.

Turn hex nuts and cap screws.

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

The knurled shank on these bits allows finger tightening. They can also be used with the included screwdriver.

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.

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.

A magnet holds the nut in place.

These bits have an offset cross shape.

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.

Use with screws that have two drilled holes.

A three-winged tip fits triangular slotted screw recesses.

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

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

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.

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

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.

Lock your bit into the adapter to prevent accidental disengagement. These adapters attach to square-drive tools.

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

Designed to withstand high torque and force, these adapters fit the square drive on impact wrenches. Use with hex-shank bits (also known as insert bits).

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

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

Lock the bit into the chuck to prevent accidental disengagement.

Insert a bit into the shaft and a magnet holds it in place.

The bit holder ratchets so you can drive fasteners when there's little space to move the handle. A magnet or retaining ring secures the bit in the holder.

LEDs light the tip so you can use these tools in dark areas.

An insulated handle and shaft protect against shock from accidental contact with live electrical circuits. These tools are tested to 1,000 volts to meet EN 60900 and IEC 60900.

When working in tight spaces, these short drivers fit where others can't. Bits have a different tip at each end and snap into the shaft, which is also a nutdriver.