Am tech 253 piece assorted drill bit set includes 154 piece 25mm cr v bits 48 piece 50mm cr v bits 14 piece titanium coated twist drills 15 piece wood drill bits 3 piece flat wood drill bits 13 piece masonry drill bits 4 piece drill depth collets 1 piece hex key 1 piece magnetic bit holder colour silverblack size 55cm x 39cm x 4cm