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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.
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.
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.
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.
Strong and durable, these multipurpose bits are for use with bit screwdrivers. They 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.
Ribs forged into the wings of these bits grip the screw recess to reduce stripping. They're also known as ACR® bits.
The small-diameter shaft can access screws in narrow recessed holes.
Drive screws with both ends of these bits. Use with hand drivers.
A wide tip makes good contact in shallow and coated screw recesses, such as those filled with paint.
Remove screws in hard-to-reach places. A spring-loaded sleeve guides bits onto the screw head and keeps them from slipping out.
An exterior stop collar prevents fasteners from being driven too deep. Use with soft material such as drywall, wood, and fiberboard.
Bits have a different size at each end.
Strong and durable, these multipurpose bits are often used with power tools to install sheet metal 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.
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.
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.
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.
These bits have an offset cross shape. They’re also known as ACR® 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.
A three-winged tip fits triangular slotted screw recesses.
Also known as Polydrive bits.
These bits provide a secure grip on the Phillips/slotted combination-drive screws in electrical equipment.
These are also known as TP3® bits.
Also known as Reed and Prince bits.
Grip the indentations on the head of tri-groove fasteners.
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.
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 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.
Turn two drive styles with one reversible bit. Remove and replace to change the tip.
Turn the screws found in Apple devices.
Use with screws that have two drilled holes.
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 tip is shaped like an eight-pointed star.
Turn screws that have the tamper-resistant asymmetrical drive exclusive to McMaster-Carr.
These bits are shaped like a 12-pointed star. They're also known as XZN bits.
An opening at the tip accommodates the pin in the recess of tamper-resistant pentalobe and tamper-resistant Torx Plus screws.
An opening at the tip accommodates the pin in the recess of tamper-resistant square screws.
These are also known as known as butterfly and Type G bits.
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.
The toughest bits available, these withstand the shock and twisting force of impact drivers. A magnet holds the nut in place.
Turn hex nuts and cap screws.
Install and remove eyebolts and screw-in hooks.
A slot in these bits holds and turns wing nuts.
Quickly install threaded rods and studs using a cordless drill, instead of doing it by hand.
Use to install wood screw threaded studs (also known as dowel screws).
Turn the flat-end bolts and screws that are commonly used for wire guiding and hanging pipes and fixtures.
One-way screws can be installed with standard slotted screwdrivers but can only be removed with this type of bit.
Assortments contain bits with multiple drive styles.
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.
Also known as Bristol bits, these have a knurled-end shank that allows finger tightening. They can also be used with the included screwdriver.
The slightly tapered tip wedges into the screw recess for a secure hold. These are also known as Torx-Align bits.
A magnet holds the nut in place.
These bits are also known as nut setters.
Designed for the fasteners used in electronics assembly, the tip of these bits has slightly sharper corners than Phillips style.
These bits have an offset cross shape.
Also known as Robertson bits these are designed for screws with a square recess in the head.
Use 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.
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.
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.
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.
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.
These adapters are designed to withstand the high torque of impact drivers. They hold hex-shank bits (also known as insert bits).
Eliminate the need for multiple bulky tools with these bit adapters. At less than 3 inches long, these compact adapters convert ¼” bit screwdriver handles and ¼” bits into torque screwdrivers so you can fasten to a specific torque.
Use a 4 mm bit in a bit driver that's designed for 1/4" bits.
Lock your bit into the adapter to prevent accidental disengagement. These adapters attach to square-drive tools.
Attach these adapters to square-drive tools.
Insert these adapters into your SDS-drive rotary hammer to use it with 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).
Fit these small cases comfortably in your pocket.
Store a variety of sizes and styles of bits and adapters in one compact tray.
Mount the magnetic base to walls, cabinets, and other steel surfaces.
Keep these caddies in your tool drawer or take them with you.
Use a power tool to quickly extract a fastener.
Multiple tap sizes allow tapping a range of hole diameters. Connect these taps directly to drills, power screwdrivers, and other tools that accept a 1/4" hex shank.
Drill and tap a variety of hole sizes. These taps and drill bits are for use on metal and plastic.
All taps and drill bits have a hex shank for direct connection to tools such as drills and power screwdrivers.
Drill and tap holes in a range of diameters. With a drill bit point to drive into the workpiece, these tools can drill and tap holes in a single step. Connect them directly to drills, power screwdrivers, and other tools that accept a 1/4" hex shank.
Insert these taps directly into drills, power screwdrivers, and other tools that accept a 1/4" hex shank.
With a drill bit point to drive into the workpiece, these taps can drill and tap holes in a single step. A 1/4" hex shank connects them directly to tools such as drills and power screwdrivers.
Quickly attach and remove these bits from interchangeable-bit tools.
Power troublesome burrs off of thin-wall (EMT) conduit and attach fittings in less time than traditional hand tools. These bits have a 1/4" hex shank that fits quick-change drill chucks and power screwdrivers to quickly deburr the inside and outside edges of conduit in a single step.
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.
These countersinks come attached to a high-speed steel jobbers’ bit.
Drill, countersink, and drive screws without switching three separate bits in and out of your power tool.
Choose countersinks of different sizes from these sets. Compared to countersinks with round shanks, these 1/4" hex-shank countersinks can be gripped more tightly by compatible drills and screwdrivers for greater torque.
Pop these countersinks into power drills, screwdrivers, and other tools that accept 1/4" hex shanks. Tools grip their hex shanks more securely than round shanks to tackle jobs that require higher torque.
In addition to resisting heat and wear better than high-speed steel drill bits, these can also run up to 25% faster and have a longer tool life. Insert them into power screwdrivers, impact drivers, and other tools that accept hex shanks.
Insert these bits directly into power screwdrivers, impact drivers, and other tools that accept 1/4" hex shanks.
These counterbores are attached to a drill bit for drilling and counterboring in a single step.