Description: 10mm Hollow Square Hole Saw Mortiser Chisel Auger Drill Bit Woodworking Tool   Specifications: Type: Center Drill Bit Material: High Speed Steel Overall Length: 19.4cm Quantity: 1pc   Feature: 1. Quare hole drill \/ hisel angel is mainly used for wood working: rosewood、 board、 shaving board、 MDFBoard. 2. Bearing Steel manufacturing、 hardness is good. 3. Standard chip design、 easy to remove the side of wood chips、 improve drilling efficiency. 4. Special Techonology production、 durable and not easy to break. 5. Arc design、 exquisitre sharpen durable. 6. Reduce labor intensity of construction workers、 speed up the construction speed、 reduce construction costs for construction、 installation、 renovation、 decoration industries. 7. The square chisel mortiser combines the cutting of a four-sided chisel with the action of a drill bit in the center、 8. The bit clears out most of the material to be removed、 and the chisel ensures the edges are straight and clean. 9. Hollow Mortising Chisel Bits are for making square mortises in one stroke and oblong mortises with each succeeding stroke.   Package Included: 1x Center Drill Bit   More Details: