A Torx is a star-shaped driver type that is self-centering and less prone to stripping out at the head if driven slightly off-axis

Truss head screws are special screws that have a wider head than normal to offer better holding power for thin sheet materials

Twist is awarp in which the board rotates slightly from one end to the other

A utility knife is a retractable general-purpose razor cutting tool

A variable speed trigger is a trigger control in which more pressure increases motor speed progressively faster.

Vice grips are a locking type gripping tool with a superior holding strength

A waffle face is a textured or raised grid pattern on a framing hammer face for better traction when striking a nail head.

Wane is a missing corner of a board’s square milled edge as a result of cutting the board from a location in the log that was too close to the outer tree perimeter

Zinc is asoft silver colored metal used for protection of fasteners applied as a coating or plating

An Arc Fault Circuit Interrupter  or AFCI is a specialelectrical safety device in the form of an outlet or breaker that shuts the power down when arcing conditions are detected