1QT250501 Dyna
https://www.sportsmetals.com/shop/1qt250501-dyna-1926
https://www.sportsmetals.com/web/image/product.template/1926/image_1920?unique=9222aef
9.5mm (3/8) mount - 6.3mm (1/4") core - 90mm (3.5") long
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Shipping: 2-3 Business Days