3mm shank drills
- Micro precision drilling from micro long holes (smallest diameter offering: φ0.035mm=0.00137795275”).
- The tolerance of run-out is ONLY within 2μm.
- The lip height difference is ONLY within 2μm.
- GET RID OF reamer after all.
- Suitable for a wide range of materials including steels, non-ferrous and resin.