STARWORK TRUE MECHANIC™ 303-Piece Mechanics Tool Set, Professional

[3] Quick-Release Ratchets 90T : 1/4, 3/8, 1/2-in Drive [1] 1/4-in SPINNER HANDLE [1] MAGNETIC BIT DRIVER [84] Bit Set. [1] 1/4-in Drive Extension : 3-in [2] 3/8-in Drive Extension : 3, 6-in [1] 1/2-in Drive Extension : 3-in.