This device is a hand saver. It is designed for flange workers and is inserted in the flange gap after spreading the flanges to prevent accidental flange closures. Block Boss™ kits are offered in sets for each flange class and pipe sizes up to 1/2" to 24"
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Hand injuries are a significant problem for workers and companies.
They can permanently change a life and cost companies money.
For more information about hand injuries and effected people and industries...