Specification :
Material: Chrome vanadium steel
Length: 50mm(2'')/ 60mm(2.4'')/ 75mm(3'')/ 100mm(4'')/ 150mm (6'')
Shank: 1/4 inch hexagonal

Feature:
1. Material: Made of carbon steel and chrome-vanadium steel for long service life.
2. Quick release: The magnetic drill bit extension easily releases the bits, which is convenient and quick and makes work more efficient.
3. Wide use: The universal 1/4" hex shank fit most screwdrivers and bits.
4. Only the bottom of the hole is magnetic, the hex shank is not.

Package includes :
1 x Magnetic bit holder extension (50mm)
1 x Magnetic bit holder extension (60mm)
1 x Magnetic bit holder extension (75mm)
1 x Magnetic bit holder extension (100mm)
1 x Magnetic bit holder extension (150mm)