GFB Parabolic HSS Drill Bit 9 mm x 410 mm DIN 1869-3

The GFB Parabolic HSS Drill Bit is 9 mm in diameter, 410 mm long overall with a 280 mm flute, made to DIN 1869-3, in the GT100 series. A parabolic drill has a widened, parabolic flute profile rather than a straight one, so chips clear from far greater depth than a standard flute allows. DIN 1869 defines the length classes of these extra long bits. Used where the depth to diameter ratio rises: die work, machine building and structural drilling. Because the flute does the chip clearing, the bit binds and breaks less. Seza Global supplies GFB drill bits wholesale. Request a quote for stock, pricing and delivery.