Ko-Ken KO4725Z Z-Series Reversible Ratchet, 1/2 in Drive

Ko-Ken 2725Z, 3725Z and 4725Z are Z-series reversible ratchets with square drives of 1/4 in, 3/8 in and 1/2 in. (manufacturer-stated)

Lengths are 114, 178 and 253 mm. (manufacturer-stated)

Each model is listed in the table below with its specifications.

Where this product is used

• Tightening and loosening nuts and bolts with square drive sockets
• Workshop, maintenance and repair work where a reversing action saves repositioning the tool
• Driving extension bars, universal joints and other square drive accessories

Features

• Square drive: 1/4 in, 3/8 in and 1/2 in (manufacturer-stated)
• Reversible ratchet action (manufacturer-stated)
• Z-series model

Key specifications

Drive sizes, lengths and weights are manufacturer-stated (Ko-ken catalogue 2025-26).

Selecting the right option

Match the drive size to your sockets and extension bars, and choose the length to suit the room you have to swing the handle: a longer ratchet gives more leverage and a shorter one fits tighter spaces. Ko-ken's catalogue safety notes say that a ratchet is not a hammer, that loose pipes or other improvised attachments should not be added to handles for extra leverage, and that plastic or rubber handles are not intended to act as insulation. (manufacturer-stated)

Related products

Related Ko-Ken products: Ko-Ken 2725Z-160 and 2725Z-3/8 Z-Series Reversible Ratchet, 1/4 and 3/8 in Drive, Ko-Ken 2726Z Z-Series Flexible Ratchet, 1/4 and 3/8 in Drive, Ko-Ken 2774JS/PS and 4774N/P Flexible Ratchet, 1/4 and 1/2 in Drive and Ko-Ken 2785 to 8785 Sliding T-Bar Handle, 1/4, 3/8, 1/2, 3/4 and 1 in Drive.