Specifications Material: chrome vanadium steel (magnetic) Total length: 65 mm Shank shape: hexagonal shape Shank diameter: 1/4 inch Diameter of hexagonal magnetic socket: 6 mm / 7 mm / 8 mm / 10 mm / 12 mm / 13 mm / 14 mm / 15 mm / 17 mm / 19 mm Size -Outer hexagonal shank 1/4 to inner hexagonal shank 6mm, length 65mm -Outer hexagonal shank 1/4 to inner hexagonal shank 7mm, length 65 mm -Outer hexagonal shank 1/4 to inner hexagonal shank 8mm, length 65mm -Outer hexagonal shank 1/4 to inner hexagonal shank 10mm, length 65mm -Outer hexagonal shank 1/4 to inner hexagonal shank 12mm, length 65mm -Outer hexagonal shank 1/4 to inner hexagonal shank 13mm, length 65mm -Shank outer hexagonal 1/4 to inner hexagonal shank 14mm, length 65mm -Outer hexagonal shank 1/4 to inner hexagonal shank 15mm, length 65mm -Outer hexagonal shank 1/4 to inner hexagonal shank 17mm, length 65mm -Outer hexagonal shank 1/4 to inner hexagonal shank 19mm, length 65mm Package includes 10 x Hexagonal Magnetic Socket Thank you for choosing .60 days free customer service, worry-free return and exchange. You can buy with confidence. If you have any questions, you can contact us directly via email. The professional customer service team will give you a satisfactory answer within 24 hours!