- 6-point opening exactly fits the hex nut of a spark plug, so that you can apply maximum torque
- Thin walls and extended length allow you to reach deep into spark plug wells
- Interior rubber grommet firmly grips the neck of plugs for careful removal and installation
- Advanced design grips flat sides of hex nut, not corners, to prevent round-off
- Extra-large die-stamped size markings are easy to read and cant wear off
- Polished, chrome-plated finish easily wipes clean and is highly resistant to corrosion
- 4 detent grooves provide a secure connection with the drive tool.