6pcs milling at 45° and 90°: 32.5 - 35 - 37.5 - 40 - 42.5mm 5pcs 13 stem guides: 6.5 - 7 - 7.5 - 8 - 8.5mm 1pc T handle. Not suitable for hardened valve seats. Material 9SICR Genuine Neilsen Product
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