Crown drill - a new choice for drilling a 12 to 20 mm drill bit

The French company Paccot based in Haute-Savoie has been in the automatic lathe industry for generations. Staying at the forefront of the development of the processing industry, they are willing to work with innovative suppliers and see Seco as a true collaborator.

The PACCOT is equipped with a BIGLIA twin-spindle lathe - using high-pressure coolants developed by the modern tool industry. A number of tests have been carried out by several suppliers for pipe joint drilling used by a large earth moving vehicle manufacturer.

"In all knives (whole carbide, welded or interchangeable drills) tests, the crown diamonds achieved the best results with productivity." Production Manager M. David PONCEL said.

Mild steel A37 (S235JR) has chip removal problems. The blank of the part is from a 37mm hexagonal bar, and a diameter of 15mm and a depth of 36mm are drilled on it. The optimized cutting parameters are Vc: 115 m/min and feed: 0,25 mm/tooth. The Crown drill beats competitors with a drill tip drilling 4,000 parts, which represents an incredible length of drilling up to 144 meters! The overall performance is more than twice that of the original tool, and the added value is increased by eliminating regrind and part of the tool management costs. In addition, production reliability has also increased.

M. PONCEL added, "Based on these results, my new choice for drilling is Seco: SD20 and SD25 solid carbide drills with a diameter of 5 to 12 mm and a crown of 12 to 19.8 mm in diameter that takes advantage of the interchangeable tip. Drills. For drills with a diameter of 20 mm or more, we use Seco's SD52 and SD55 with square blades.

From now on PACCOT will make choices based on economy and performance, and believe that Seco's products will enable them to achieve their productivity goals.

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