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Large DR-TWIST Appliction
New Large Diameter DR-TWIST Drills
ISCAR's new family of 61 to 80 mm large diameter drills expands the existing 14 to 60 mm range.
This family features a drill body with a 50 mm Weldon shank that carries cartridges with square inserts (4 cutting edges) in 10, 11 and 12 mm sizes. The inserts are available with two chipformer types and in the following grades: IC808/908 for low alloy steel, stainless steel and high temperature alloys. IC8080 which is recommended for high speed drilling of cast iron and steel, should be used for the peripheral insert.
https://www.iscar.com/Products.aspx/CountryID/1/ProductId/167
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