H&L Tooth Company History since 1931:
H&L #HL-4T4453, R-450 Series Caterpillar Style ripping tooth was engineered and introduced by the Hi-Production Forge Company in 1981. Hi-Pro was a Division of the H&L Tooth Company in Montebello, California during the 1970’s and 80s. Replaces other numbers; 9W-2451, 9W-2452, 114-0453, 4T-5451, 4T-5452.
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