Ko-Ken KO14145PM17 Impact Wheel Nut Socket, Extra Thin Wall, 17 mm, 1/2 in Drive

The Ko-Ken 14145PM-110 is an extra thin wall impact wheel nut socket with a 1/2 in square drive for wheel nut work.

Sizes are 17, 19 and 21 mm.

Length is 110 mm. (manufacturer-stated)

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

Where this product is used

• Wheel nuts that sit deep inside the wheel, where the 110 mm length gives extra reach
• Aluminium wheel nuts where access to the nut is tight
• Tyre and wheel servicing with an impact wrench

Features

• 1/2 in square drive
• 6-point (hexagon) opening
• Extra thin wall design for wheel nut work (manufacturer-stated)
• 110 mm overall length for nuts recessed deep inside the wheel (manufacturer-stated)
• Detachable plastic protector helps prevent damage to the wheel in tight areas (manufacturer-stated)
• Colour coded shafts: blue 17 mm, red 19 mm and yellow 21 mm (manufacturer-stated)
• Plastic insert helps prevent damage to the wheel nut (manufacturer-stated)
• Socket size and Ko-ken mark printed on the shaft, so you can see whether the socket is still turning (manufacturer-stated)
• Listed in the Impact Sockets section of the catalogue (manufacturer-stated)
• Retaining pin and O-ring or C-ring parts listed in the catalogue for each size (manufacturer-stated)

Common specifications

Key specifications

Weights are manufacturer-stated (Ko-ken catalogue 2025-26).

Selecting the right option

Match the 1/2 in square drive to your impact wrench, then choose the size that fits the wheel nut. Dimensions are shown with the labels used in the catalogue table (D2 and H). The catalogue footnotes list these retaining parts for the sockets: pin A41 with O-ring B41 or C-ring C41. The part for each size is shown in its specifications. The catalogue lists the pins, O-rings and C-rings as separate packs (pages 270 and 271) and does not say whether any are supplied with the socket. (manufacturer-stated) The catalogue warns that the thin walled design is only for wheel nut work and that the torque rating is limited. (manufacturer-stated) The catalogue's safety notes say to select impact sockets only for electric or air impact wrenches, to wear safety goggles when using nut runners or impact wrenches, never to substitute a hand socket for an impact socket, and to replace sockets with cracked walls, battered points or other marks of wear. (manufacturer-stated)

Related products

Related Ko-Ken products: Ko-Ken 14300M 6-Point Deep Impact Socket, Metric Sizes, 1/2 in Drive, Ko-Ken 14400M 6-Point Impact Socket, Metric Sizes, 1/2 in Drive, Ko-Ken 14305M 12-Point Deep Impact Socket, Metric Sizes, 1/2 in Drive, Ko-Ken 14012M-60 Impact Inhex Socket, Metric Sizes, 1/2 in Drive, Ko-Ken Impact Socket Spare Pin and Ko-Ken PK1401C-10 C-Ring Retaining Clip Kit, 10 Clips, 1/2 in Drive.