17 PIECE IMPACT HEX BIT SOCKET SET. 1/4" DRIVE : H2 - H2.5 - H3 - H4 - H5 - H5.5 - H6. 3/8" DRIVE : H7 - H8 - H9 - H10 - H12. 1/2" DRIVE : H14 - H15 - H17 - H19 - H22. SET INCLUDES .
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