Its non-stick surface prevents built-up edge (BUE) that ruins part surfaces. TPGW : Denotes a60° Triangular Positive-Rake Single-Sided Turning Insert —the code breaks down to Tool Holder Fit : Works with standard 60° triangular tool holders for TPGW16 inserts (e.g., STUPR16 with 20-25mm shank) and compatible boring bars for machining bores ≥15mm in non-ferrous parts.
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