Ceramic Master 3900 drill bit Drill bits for ceramics, tiling, hard-burned tiling, glass, acrylic glass and mirror glass. Precise drilling-in plus quick and and material-protecting propulsion. -Regular regrinding is required when working on hard materials- IMPORTANT: For rotary use only (at a low speed) Sufficient cooling is required! Diameter: 5.0 mm Total length: 75 mm https://elecena.pl/product/17885131/50093-7-ceramic-master-3900-drill-bit-60-mm-5-0-mm 2021-04-26 https://elecena.pl/product/17885131/50093-7-ceramic-master-3900-drill-bit-60-mm-5-0-mm 2021-05-24 https://elecena.pl/product/17885131/50093-7-ceramic-master-3900-drill-bit-60-mm-5-0-mm 2022-01-18 https://elecena.pl/product/17885131/50093-7-ceramic-master-3900-drill-bit-60-mm-5-0-mm 2022-07-19 https://elecena.pl/product/17885131/50093-7-ceramic-master-3900-drill-bit-60-mm-5-0-mm 2023-01-04 https://elecena.pl/product/17885131/50093-7-ceramic-master-3900-drill-bit-60-mm-5-0-mm 2025-09-09