Dia 159.5 mm deep hole boring head

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