[4H-04L150: Two-sided: 4mm]
[4H-05L150: Two-sided: 5mm]
[4H-06L150: Two-sided: 6mm]
[4H-03L150: Two-sided: 3mm]
[4H-17L150: Two-sided: 17mm]
[4H-12L150: Two-sided: 12mm]
[4H-07L150: Two-sided: 7mm]
[4H-19L150: Two-sided: 19mm]
[4H-14L150: Two-sided: 14mm]
[4H-22L150: Two-sided: 22mm]
[4H-08L150: Two-sided: 8mm]
The knurling around the perimeter makes it easy to turn the bolt quickly with your finger.
The extra-long length allows you to access areas where you couldnt work before.