ATA International Product Catalogue

304 1 5 2 3 4 6 7 SPADE DRILLS CONTACT INFORMATION For more information please call +353 49 435 2138 or send an email to ask@atagroup.ie Reduce your drilling cost by using KARNASCH spade drill Spade drill is one of the main interchangeable insert drill from KARNASCH. lt is a highly efficient drilling tool with superior performance, designed to replace those traditional hole drilling products with low efficiency and inconvenient usage. lt consists of two parts – holder and inserts. lts advantages are: 1 Only 14 holders can meet the demand for drilling holes from  9.5 to  114 mm. 2 Inner cooling design of holder enable excellent chip removal and good cooling when drilling deep holes. 3 High accuracy of the connections between the inserts and holders ensures high clamping accuracy, and easy to replace inserts. 4 Inserts are made of powder high speed steel or carbide, in tolerance h8, combined with various coatings. This significantly improves the toollife and drilling speed in comparison to normal twist drills (see cutting data pages 1566- 1571) . 5 Replaceable structure, which is more convenient. No need of regrinding drill on the scene. 6 New type XR edge reduce the cutting resistance greatly. 7 Inserts have the function of chip-breaker, which improves the stability of holes drilling. WHY SPADE DRILLS 11 Index 10 9 OIL 8 7 6 5 4 3 2 1