Original WEBSTER® model BB-75

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Article code: WBB75

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The Model BB-75 Tester was developed to answer the need of certain industries for a method of rapidly testing the hardness of electro-deposited copper in the low hardness range. The B-75 penetrator is used to give sensitivity, and the Model B load spring is employed to give light pressures. This combination allows the user to test the soft range of many common materials. The graph below shows the range covered by the Model BB-75 tester on copper.

Option & accessories

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Original WEBSTER® model BB-75

Option & accessories

Reduced anvil, Ø 1/4" (6,35 mm)

Reduced anvil, Ø 1/8" (3,18 mm)

Reduced anvil, Ø 3/16" (4,76 mm)

Standard anvil, Ø 3/8" (9,53 mm)

Extended Anvil Spacer - Ø 1" (25,4 mm)

Extended Anvil Spacer - Ø 1"1/4 (31,75 mm)

Extended Anvil Spacer - Ø 1"3/4 (44,75 mm)

Increase jaw capacity between 1/2"~7/8" + 1" & 1"3/4 spacer

Increase the jaw capacity between 1/4" and 1/2" + 1" spacer

Increase of the jaw capacity of the tester from 1/4" to 3/8"

Increase jaw capacity between 3/8"~3/4" + 1"1/4 spacer

Increase jaw capacity between 5/8"~1" + 1" & 1"3/4 spacer