KOKMA ADAPTER SET AIR 6 PIECES_x000D_ all tips are made of chrome molybdenum steel,_x000D_ matt chrome-plated with retaining ball and groove for retaining rings_x000D_ 6.3 mm 1/4"inside x 10mm 3/8"outer, length 26mm and load capacity 90NM_x000D_ 10mm_x000D_ 3/8"inside x 6.3mm 1/4"outside, length 35mm and load capacity 90NM 10mm 3/8"inside x 12.5mm 1/2"outside, length 37mm and load capacity 250NM_x000D_ 12.5mm 1/2"inside x 10mm 3/8"outside, length 41mm and load capacity 250NM_x000D_ 12.5mm 1/2"inside x 20mm 3/4"outside, length 53mm and load capacity 500NM_x000D_ 20 mm 3/4" inside x 12.5 mm 1/2" outside, 57 mm length and 500 NM load capacity_x000D_ fully sorted in a sturdy plastic box_x000D_ Product for long service life in daily workshop use