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56 Prices in Euro VAT excluded 2024 2025 GB Live inventories at www saratools com • For centring holes with protected centre DIN 332 B • 60° centre holes 120° tapered countersunk recess • Application of the workpiece to the centre point over a large surface area with the advantages of a belltype countersink • Suitable for workpieces which are subject to deformation tension during machining • Spiralfluted bare surface Centring drills with protected centre Fig Form Bm at er ia l very well suited well suited steel stainless steel cast iron titanium alloys superalloys Fe NiCobased aluminium copper graphite hardened steel < 700 Nmm² < 1000 Nmm² < 1400 Nmm² ferrit martens austenitic duplex GG GTS GGG < 30 HRc ≥ 30 HRc < 8 % Si ≥ 8 % Si Cualloy GRP CFP thermo < 55 HRc < 60 HRc ≥ 60 HRc 40 20 10 10 8 20 20 8 80 50 40 10 Cutting speed Vc m min Please adjust these guidelines according to clamping operation and machine setup Dmm D1 mm L1 min max Lmm Feed f steel < 1000 Nmm² mm rev art no € 1 00 4 1 3-1 7 mm 35 0 05 5 100105 0100 6 80 1 25 5 1 6-2 0 mm 40 0 05 5 100105 0125 7 55 1 60 6 3 2-2 4 mm 45 0 05 5 100105 0160 8 50 2 00 8 2 5-2 9 mm 50 0 05 5 100105 0200 9 45 2 50 10 3 1-3 6 mm 56 0 05 5 100105 0250 12 30 3 15 11 2 3 9-4 4 mm 60 0 07 1 100105 0315 15 60 4 00 14 5-5 6 mm 67 0 07 1 100105 0400 23 10 5 00 18 6 3-7 2 mm 77 0 07 1 100105 0500 33 30 6 30 20 8 0-8 9 mm 80 0 14 1 100105 0630 48 60 1101 • S° point angle 90° or 120° • Precisionground point • Version 90° from Ø 4 mm pointed • High stability due to short chip flutes • For fast drilling on NC CNC machines and machining centres with precise positioning NC spotting drill m at er ia l very well suited well suited steel stainless steel cast iron titanium alloys superalloys Fe NiCobased aluminium copper graphite hardened steel < 700 Nmm² < 1000 Nmm² < 1400 Nmm² ferrit martens austenitic duplex GG GTS GGG < 30 HRc ≥ 30 HRc < 8 % Si ≥ 8 % Si Cualloy GRP CFP thermo < 55 HRc < 60 HRc ≥ 60 HRc 100130 40 20 10 12 10 45 20 6 6 80 70 40 10 100131 50 30 12 20 15 45 30 10 10 10 90 80 50 10 100120 40 20 10 12 10 45 20 6 6 80 70 80 10 100121 50 30 12 20 15 45 30 10 10 10 90 80 50 10 Cutting speed Vc m min Please adjust these guidelines according to clamping operation and machine setup Dmm D1 mm L1 mm Lmm Feed f steel < 1000 Nmm² mm rev 90° art no € 90° TiN art no € 120° art no € 120° TiN art no € 3 00 3 10 50 0 04 100130 0300 9 — 100131 0300 13 95 100120 0300 9 — 100121 0300 13 95 4 00 4 12 52 0 05 100130 0400 9 — 100131 0400 13 95 100120 0400 9 — 100121 0400 13 95 5 00 5 15 60 0 05 100130 0500 9 60 100131 0500 15 50 100120 0500 9 60 100121 0500 15 50 6 00 6 20 66 0 06 100130 0600 12 30 100131 0600 17 75 100120 0600 12 30 100121 0600 17 75 8 00 8 25 79 0 07 100130 0800 13 80 100131 0800 23 80 100120 0800 13 80 100121 0800 23 80 10 00 10 25 89 0 08 100130 1000 17 75 100131 1000 29 20 100120 1000 17 75 100121 1000 29 20 12 00 12 30 102 0 08 100130 1200 22 60 100131 1200 39 80 100120 1200 22 60 100121 1200 39 80 16 00 16 35 115 0 09 100130 1600 40 60 100131 1600 64 50 100120 1600 40 60 100121 1600 64 50 20 00 20 40 131 0 09 100130 2000 56 30 100131 2000 107 — 100120 2000 56 30 100121 2000 107 — 1101 1101 1101 1101 355 356