Made of chrome vanadium steel. Includes: 1/8, 5/32, 3/16, 7/32, 1/4, 5/16 & 3/8" Hex bit. SAE hex Bit set 6 point Material: Chrome vanadium Includes: 1/8, 5/32, 3/16, 7/32, 1/4, 5/16 & 3/8" Hex bit 7 piece. WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP) which is kno