Hardened and tempered drop forged chrome vanadium steel with nickel chrome plated finish for corrosion resistance. Precisely machined and heat treated. Manufactured to DIN838. Includes 5/16" x 3/8", 7/16" x 1/2", 9/16" x 5/8", 5/8" x 11/16", 3/4" x 7/8", and 15/16" x 1".

• Chrome vanadium steel
• Satin finish nickel chrome plated for corrosion resistance
• Drop forged to precise tolerances & machined to exceptional accuracy
• Durable, reliable & long service life
• Manufactured to DIN838