GBP 57 GARANT Master Eco grooving toolholder Made of high-tensile tool steel (> 1300 N/mm2). In conjunction with the convex insert clamping, the system achieves very high resistance to axial and radial cutting forces and thereby significantly increases the surface quality and productivity. Highly efficient cooling directly on the cutter and additional flank face cooling. Note: Coolant transfer only possible in conjunction with GARANT Master Eco toolholders No. 319006 − 319136. Optimum washing of the cutter with coolant. o oling face c flank With L ⌀ max L1 t w L4 Groove depth tmax ≤ 12.5×groove width w ​ Size 20/3; 25/3 – 10×w Size 20/3L; 25/3L – 12.5×w (groove depth up to 37.5 mm) Note: From 19.5 mm groove depth (up to groove width 3 mm) and from 24.5 mm groove depth (from groove width 4 mm) the second cutter comes into contact with the workpiece. This can lead to scoring. If necessary, use single-ended parting-off / grooving inserts No. 273664 – 273786. Maximum ⌀ = limited workpiece ⌀ due to the tool type. NEW th e dep p to groov 12.5×w 27 3837 U m= 37.5 m Positioning within the scale ensures precise coolant transfer. Shank width / 27 3837 27 3839 ⌀ Dmax tmax L4 L1 L Screw 21U 21U groove width w GARANT Master Eco grooving toolholder mm right-hand left-hand mm mm mm mm mm ​ 20/3 eShop eShop 60 30 21.5 46.5 105.5 279815 6 (TX25; 6 Nm) 20/3L eShop eShop 75 37.5 21.5 54 113 279815 6 (TX25; 6 Nm) 25/3 eShop eShop 60 30 26.5 46.5 118 279815 6 (TX25; 6 Nm) 25/3L eShop eShop 75 37.5 26.5 54 125.5 279815 6 (TX25; 6 Nm) Groove depth tmax ≤ 7×groove width w ​ Note: From 19.5 mm groove depth (up to groove width 3 mm) and from 24.5 mm groove depth (from groove width 4 mm) the second cutter comes into contact with the workpiece. This can lead to scoring. If necessary, use single-ended parting-off / grooving inserts NEW No. 273664 – 273786. 27 27 3872 Positioning within the scale ensures precise coolant transfer. Shank width / 27 3872 27 3873 tmax L4 L1 L Screw 21U 21U groove width w GARANT Master Eco grooving toolholder mm right-hand left-hand mm mm mm mm ​ 20/2 eShop eShop 14 21.5 33.5 92.5 279815 6 (TX25; 6 Nm) 25/2 eShop eShop 14 26.5 33.5 105 279815 6 (TX25; 6 Nm) 20/3 eShop eShop 21 21.5 36.5 95.5 279815 6 (TX25; 6 Nm) 25/3 eShop eShop 21 26.5 36.5 108 279815 6 (TX25; 6 Nm) 20/4 eShop eShop 28 21.5 48 107 279815 7 (TX30; 8 Nm) 25/4 eShop eShop 28 26.5 48 119.5 279815 7 (TX30; 8 Nm) 876