The Xcelite 994R 3 1/2 in. Reversible Ratcheting Tee Handle is designed for use with Series 99 interchangeable blades (sold separately). The tee handle permits extremely simple one-handed operation, even in tight quarters. It is equipped with a left-right-neutral marking indicator. Its light ratcheting drag facilitates turning while also preventing fasteners from reversing. The handle is easy to operate with a smooth precise action.