
Forged and heat treated Chrome Molybdenum steel impact grade bi-hex deep socket, chemically blackened for corrosion resistance. Malleable steel material makes the socket suitable for use with either hand ratchet wrenches or air impact wrenches. One of a comprehensive range of Premier Hand Tools, suitable for daily professional use. Forged and heat treated Chrome Molybdenum steel impact grade bi-hex deep socket, chemically blackened for corrosion resistance. Malleable steel material makes the socket suitable for use with either hand ratchet wrenches or air impact wrenches. Lifetime guarantee*.