TECHNICAL INFORMATION TECHNICAL INFORMATION DRILLING - COOLANT MAX. AND MIN. HOLE DIAMETER COOLANT VOLUME REQUIREMENTS * 0.25 to 0.5 mm 0.2 mm 90 80 + - 70 60 * the maximum diameter adjustement 50 depends on the drill body diameter 40 30 Reduce the feed in 50% in case of 4xD drilling 20 10 DRILL DIAMETER INSERT RADIAL SHIFT MAX. HOLE (Ø) 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 13 +0.5 14.0 14 SPMG O50204 +0.5 15.0 COOLANT PRESSURE REQUIREMENT HOLE TOLERANCE(BASED ON STABLE CONDITIONS 1516 +0.5 16.0+0.517.0 Drilling Recomended pressure ( Bar) Drill lenght Hole tolernace (mm) 17 +0.5 18.0 depth Drill diameter 2xD + 0.20 / - 0.115-25> 25-40> 40 18 +0.5 19.0SPMG O6020419+0.520.0 <3xD 6 4.5 3 3xD + 0.25 / - 0.1 20 +0.5 21.0 ≥3xD 12 9 6 4xD + 0.30 / - 0.1 21 +0.25 21.5 22 +0.5 23.0 23 +0.5 24.0 24 +0.5 25.0 SPMG O7T308 RECOMMENDED * SUITABLE 25 +0.5 26.0 26 +0.25 26.5 27 +0.25 27.5 28 +0.5 29.0 29 +0.5 30.0 GENERAL CROSS IRREGULAR SURFACE INTERRUPTED 30 +0.5 31.0 DRILLING DRILLING DRILLING DRILLING SPMG O90408 31 +0.25 31.5 32 +0.25 32.5 * SUITABLE Reduce the feed in 50% 33 +0.25 33.5 370 371