DRILTEC SM-615-615 Jet-Head® Drill Bit 1-3/8 in SDS Max

Drill bit, SDS-plus, shaper ctting edge, with two center points for faster and more accurate drilling. Features and benefits: unique concave carbide tip design, accelerates drilling speed, reduces wear and supports dust removal, more carbide on both principle cutting edges for superior durability, a single wide spiral flute reinforces the core of the drill bit, maximizing the power transferred to the carbide tip, the smaller spiral flute allows for the retention of the two wide channels for faster dust removal and reduced spiral flute wear.