Part Numbers: N078434 spring has good elasticity and durability.This is part of an impact driver bit holder system that helps hold the screw bit in place after inserting it into the bit holder.Compatible with many machines: DC825B 3, DC825B 4, DC825K 3,DC825KA 3, DC825KA 4, DC827KL 3,DC835KA 3, DC845KA 3, DC845KA-AR 3, DCF805C2-AR 1, DCF805C2- 1, DCF805C2-B3 1, DCF805C2-BR 1, DCF815S2 3, DCF815S2 4, DCF885B 1, DCF885B 2, DCF885B 4, DCF885B 5, DCF885B-B3 1, DCF885B-B3 5Compatible with many machines: DCF885C2 1, DCF885C2 2, DCF885L1 5, DCF885L2 1, DCF885M2 2, DCF886B 1, DCF886B 2, DCF886B 3, DCF886B 4, DCF886B 5, DCF886B 6, DCF886B-B3 1, DCF886D2 1, DCF886D2 6, DCF886D2-B3 1, DCF886M2 1, DCF886M2 4, DCF886M2 6, DCF886M2- 1, DCF886M2-BR 1 etc. DCF890Material: Metalcolour: as shownPackage Contents:4 x Impact Driver SpringOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.