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198 ISCAR SPOT DRILLING AND CHAMFERINGExplanation of the Solid Carbide Spot Drill Description Example:ECD-S2 030 / 90 C 03 - 381 2 3 4 5 61 Designation of the Drilling HeadECD-S2 %u2013 solid carbide drill for spot drilling, chamfering, and countersinking2 Cutting Diameter (DC)DC3 Point AngleSIG4 Shank TypeC - cylindrical5 Shank Diameter (DCONMS)DCONMS6 Overall Length (OAL)OALBasic Dimensions of the Solid Carbide Spot DrillLUSIG DCONMSOALDCAPMXDC %u2013 cutting diameterDCONMS %u2013 connection diameter machine sideOAL %u2013 overall lengthAPMX %u2013 depth of cutLU %u2013 usable lengthSIG %u2013 point angle

