2:31 OSG A SFT M12 55 mm deep tapping in Stainless Steel 304 2:15 New portable cooling system usage at drilling cast iron d30 mm deep 260 mm. 0:23 Dia 35 mm*1350 mm deep hole gun drilling tools 0:10 44 mm deep sea sea dweller Rolex with 8 carats diamond bezel 4:28 17.5 mm x 55 mm deep drilling, M20 x 50 mm deep Tapping test 0:22 Dia 159.5 mm deep hole boring head 0:28 Dia 59.8 mm deep hole drilling head 0:34 Drilling a Ø2 mm hole, 100 mm deep, through 5 cross-holes using a Mini DVAS drill 1:14 1 mm deep engraving on Aluminium, 30w Fiber laser engraving machine,laser marking machine 1:13 Precision Micro Drilling | Ø0.5 mm × 6 mm Deep Hole in SS 303