High-precision countersink Garant 90° All countersinks have 3 cutting edges Special geometry with extremely unequal spacing and matching cutting

High-precision countersink Garant 90° All countersinks have 3 cutting edges. Special geometry with extremely unequal spacing and matching cutting edge preparation. Radially relief ground. Flutes ground from solid. Newly developed special TiAIN coating for long service life. High-precision countersinks, produced with tight manufacturing tolerances similar to DIN 335-C. Three drive flats on the shank for use in a 3-jaw chuck Very smooth cutting throughout the entire countersinking operation. Chatter-free running for perfect results and optimum tool service life. High-precision countersinks for production of exactly round 90° countersunk surfaces. Relief-ground three-flute countersinks for precisely centred countersunk surfaces. Suitable for/ vc m/min Alu plastics o Alu cast >10% Si <500 N <750 N <900 N <1100N <1400 N <55 HRC <60 HRC <67 HRC INOX <900 N INOX >900 N Ti >850 N GG(G) Cu Gra G C 1 Uni max min Air ISO code N P H K N 15 0130-0132 - 90 75 50 65 60 30 18 8 8 16 10 16 25 80 O 1 1 1 O 1 External 0 1 150130 lifec I 150132 rant' Smallest countersink 0, for holes from 0 Uot T h9 For countersunk screws DIN 7991 <500 N High-precisio 90“ n countersink with 3 drive flats 90° f mm TIAIN TiAIN mm mm/rev 6,3 1.5 45 5 M3 0.10 10,4 2.5 50 6 M5 0.13 16,5 3.2 60 10 M8 0.18 20,5 3.5 63 10 M10 0.22 25 3.8 67 10 M12 0.25 j&Gaianf High-precision countersink set 90° in a case 90‘ HSS DIN 335 C Version 5-piece precision countersink set in a case. 15 0305- Consisting of countersinks No. 150130 15 0307- Consisting of countersinks No. 150132. All countersinks additionally with 3 drive flats on the shank for use in a 3-jaw chuck. Application High-precision countersinks for production of exactly round 90° countersunk surfaces. Supplied with 1 x each countersink in sizes 6.3; 10.4; 16.5; 20.5; 25; in a case. Number of countersinks 5 li&Gmnt” 15 0305 High-precision countersink set No. 15 0130 in a case 90° TiAIN lifeGaait” 15 0307 High-precision countersink set with 3 drive flats No. 150132 in a case 90° TiAIN Contents 1 x each countersink Size 6.3; 10.4; 16.5; 20.5; 25 3 For number of countersinks 5 15 0368 Empty case GARANT 90° high-precision countersinks Critical advantages with extremely unequal spacing (UGT). With standard countersinks (without unequal spacing) the problem of irregular running during countersinking often arises. The tool starts to chatter, with the consequence of greatly varying loads on each cutting edge. The result is not only countersunk surfaces that are significantly out of round or corrugated, but also significantly higher tool wear. The new GARANT high-precision countersinks solve this problem. The extremely unequal spacing (UGT) gives the countersink a smooth cutting action. The load on each cutting edge is equal and considerably less, which significantly increases the service life. The result is exactly round perfect countersunk surfaces. The advantages Extremely unequal spacing for very smooth cutting action in all materials (green ring). Significantly reduced radial and axial forces. Special TiAIN coating. Long service life. Exactly round perfect countersunk surface. Main catalogue Hoffmann Group 46 Standard countersinks The result (on the right) Exactly round perfect 90° countersunk surface. L- - V, DIN 335 C Version 150132- Advantage Application