L-Shaped Attachment for Impact Driver ★ Socket Adapter for Impact Driver ★ Socket Holder & Bit Holder - 3 pieces ★ Carabiner - 3 pieces Set of 4 ★ L-shaped attachment is essential for tight spaces! Insert the bit all the way in and use at low speed. ★ Socket adapters are color-coded by size: blue, red, and yellow for easy size identification. ◎ Conversion Sizes: 1/4" (6.35mm), 3/8" (9.53mm), 1/2" (12.7mm) ★ There are 3 socket holders.