These battery-powered ratchets are made by Milwaukee. They have a square drive for holding interchangeable sockets that fit the drive and the fastener to turn fasteners in tight spaces. Tool batteries can often be used with tools of the same brand, battery series, and voltage. Voltage describes the level of power the battery provides. Amp-hours (Ah) describes the amount of power the battery holds (its capacity), which determines how long a fully charged battery can perform before needing a recharge. The higher the Ah rating of the battery, the greater its storage capacity. As voltage and Ah ratings increase so do the weight and bulk of the battery and the tool it powers.

These cordless ratchets run on DEWALT batteries of a compatible series and matching voltage. The batteries can also power other DEWALT tools. The ratchets' square drive holds compatible, interchangeable sockets that fit the drive and the fastener to turn fasteners in tight spaces. Tools using lower-voltage batteries are generally lighter and more compact but less powerful than tools using higher-voltage batteries. Tools using lower-capacity (Ah) batteries are less bulky but store less power than tools using higher-capacity batteries.

These battery-powered ratchets are made by Ingersoll-Rand. They have a square drive for holding interchangeable sockets that fit the drive and the fastener to turn fasteners in tight spaces. Tool batteries can often be used with tools of the same brand, battery series, and voltage. Voltage describes the level of power the battery provides. Amp-hours (Ah) describes the amount of power the battery holds (its capacity), which determines how long a fully charged battery can perform before needing a recharge. The higher the Ah rating of the battery, the greater its storage capacity. As voltage and Ah ratings increase so do the weight and bulk of the battery and the tool it powers.

These battery-powered ratchets are made by Makita. They have a square drive for holding interchangeable sockets that fit the drive and the fastener to turn fasteners in tight spaces. Tool batteries can often be used with tools of the same brand, battery series, and voltage. Voltage describes the level of power the battery provides. Amp-hours (Ah) describes the amount of power the battery holds (its capacity), which determines how long a fully charged battery can perform before needing a recharge. The higher the Ah rating of the battery, the greater its storage capacity. As voltage and Ah ratings increase so do the weight and bulk of the battery and the tool it powers.