These jobbers'-length bits have the rigidity and length required for most applications.

Because softer metal, like aluminum, brass, and bronze, can clog a bit, the flutes on these bits lift chips out of the hole. Also known as slow-spiral drill bits.

Also known as multi-spur counterbores, these have two set screws to secure them to a woodworking drill bit.

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

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

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.

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

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

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

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.

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. Designed for screws with a square recess in the head, they 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.

Use with screws that have two drilled holes.

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

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

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.

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.

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

Use a 4 mm bit in a bit driver that's designed for 1/4" bits.

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. These are also known as Torx-Align bits.

These bits have an offset cross shape.

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

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.

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.