H&L Tooth Company History since 1931:
H&L #HL-4T4503, R-500 Series Caterpillar Style ripping tooth was engineered and introduced by the Hi-Production Forge Company in 1980. Hi-Pro was a Division of the H&L Tooth Company in Montebello, California during the 1970’s and 80s. Replaces other numbers; 4T-4501, 4T-4502, 8E-8503, 4T-5501, 4T-5502.
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