We have 30 mm diament turning bar (10 units) with lenght 450 mm. We want to: 1. Deep drilling (centered through deep hole D 20 mm); 2. Perforating above obtained tube (200-300 outer side through micro holes D 1.0-0.8 mm); 3. Internal deburring (delete all burrs in tube after perforating); 4. Honing (make smooth mirror cylindrical surface Ra 0.3 mkm, Rz 3 mcm); Operation 1-2 we make ourself. We need agent for 3-4 operation. Show More