14-Piece Spade Drill Bit Sets with 6“ Extension, Paddle Flat Bit for Hole Cutter

* PATENTED GROOVE DESIGN: Optimized largest area groove for efficient chip removal and heat dissipation, faster than standard spade bits; The cutting edge with unique dual-side cutting spurs for grabbing wood and carving it away, creating charming holes with reduced breakout * HIGH CARBON STEEL: Constructed of high carbon steel that has undergone comprehensive heat treatment for excellent durability and hardness; The polished surface of the head ensures a long service life and high wear resistance * LONG EXTENSION ROD: The 6-inch extension rod with 1/4 hex shank equipped can extend the spade drill bits to 12 inches for use; Excellent stability; Very suitable for drilling holes in narrow or difficult to reach areas. Also fit other drillbits or screwdriver bits * QUICK-CHANGE HEX SHANK: 1/4 hex shank with groove helps reduce slipping and prevent falling off as well as safety, universal for most drill driver tool brands in the markets * DRILL BIT SET INCLUDES: 13 pcs high-performa Perfect for everyday use. excellent materials and excellent craftsmanship ensure long-lasting durability.