spade drill

This video shows our mian product spade drill. spade drill series: Applicable to CNC equipment rocker drillingvertical drillingboringmilling machinein the railroad fork batch drillingthe using performance is excellent; Inner cooling design of holder enable excellent chip removal and good cooling High accuracy of the connections between the inserts and holders ensures high clamping accuracyand easy to replace inserts Inserts are made of powder high speed steelcombined with various coating and increase efficiency for 2 times compare with twist drill The design of replaceable structure can continue drilling operation without adjustment after changing the insets New cutting geometrical reduce the cutting resistance greatly Insert have the function of chipbreaker which improves the stability of holes drilling. Compared with twist drill, the highefficient drilling fe