Insert and power drive bits are available to meet a huge variety of
fastener styles including Phillips, Slotted, Torx, Torx Plus, Torx
Tamper Resistant, Torx Plus Tamper Resistant, Pozidriv, Sel-o-fit,
Quadrex, Frearson, B.N.A.E., Socket Head, Square Recess, Torq-Set,
MorTorq, Tri-Wing, Hi-Torque and Triple Square.
Torx® BitsTorx® fasteners are becoming more
and more common in automotive
provides a full
selection of bits for
Torx Plus® BitsTorx Plus® bits and fasteners feature a
greater engagement area for higher torque
transfer and reduced camout when
driving Torx Plus® fasteners. They
can provide up to 1 00%
more drive cycles.
Torx Plus® bits are not
compatible with standard
Pozidriv® BitsThe shallow “cross” indention
screw head identifies a Pozidriv® fastener.
The Pozidriv® bit and recess design
provides contact than a
standard Phillips for
more torque with less
Sel-O-Fit® BitsSel-O-Fit® bits are designed to provide a more efficient means of driving
The Sel-O-Fit bit places torque on the strongest and most mechanically
advantageous portion of the driver tip.
This allows more torque to be applied while minimizing the possibility of
breakage and camout.
Sel-O-Fit® is a registered trademark of Cooper Industries.
Quadrex® BitsThe Phillips/square screw drive, also known as the Quadrex or SPAX screw drive, is a combination of the Phillips and Robertson screw drives. While a standard Phillips or Robertson tool can be used, there is a dedicated tool for it that increases the surface area between the tool and the fastener so it can handle more torque.
Frearson BitsThe Frearson recess is designed so that any size bit will fit any size recess.
Choose bits on the basis of body diameter – the larger the screw, the larger the
B.N.A.E BitsFrench recess bits. The name comes from the Bureau de Normalisation de l'Aéronautique et de l'Espace.
Socket Head BitsClick here to see how to select the correct SAE Socket Head.
Click here to see how to select the correct Metric Socket Head.
Square Recess BitsA square, also known as a Robertson, screw drive has a square-shaped socket in the screw head and a square protrusion on the tool. Both the tool and the socket have a taper, which makes inserting the tool easier, and also tends to help keep the screw on the tool tip without the user needing to hold it there.
Torq-Set® BitsTorq-set is a cruciform screw drive used in torque-sensitive applications. The Torq-set head is similar in appearance to a Phillips drive in that it has a cross with 4 arms. In Torq-set however, the arms of the cross are offset from each other, so they do not align to form intersecting slots across the top of the head.
Mor Torq® BitsThe Mortorq drive, developed by the Phillips Screw Company, is a format used in automotive and aerospace applications. It is designed to be a lightweight, low-profile and high-strength drive, with full contact over the entire recess wing reducing risk of stripping.
Tri-Wing® BitsThe tri-wing, also known as triangular slotted, screw drive has three radial slots. It is usually used on electronics equipment. Tri-wing, as the name suggests, is a screw with three "wings" and a small triangular hole in the center. A variation is a kind where the three "wings" are joined in the center (with no triangular hole).
Hi-Torque® BitsThe Hi-Torque recess was designed to provide very high installation and removal torques, very shallow recess for use on 120° and 130° flush fasteners in thin skins, and to reduce the need for end-load of the driver by the operator while installing and removing screws.
Triple Square BitsTriple square, also known as XZN, is a type of screw drive with 12 equally spaced tips, each with a 90 degree angle. Its name derives from overlaying 3 equal squares to form such a pattern with 12 right-angled tips