Vaishnav Engineering Works manufactures Chemically Blacked Finish Hexagon Keys. Vaishnav Engineering Works is an ISO 9001:2000 awarded company. Vaishnav Engineering Works offers different types of scaffolding products, hand tools, builder tool and heavy tools. Chemically Blacked Finish Hexagon Keys is made from carbon steel. This Hexagon Keys is available with chemically blacked finish and hardened and tempered in nature.