? Premium Quality: Made of hard alloy, super-strength steel body and spiral portion with center point.
? Excellent Design: Four flute. Suitable for desktop trimming machine, portable engracing machine.
? 5 Size in 1 Set: 15mm, 16mm, 17mm, 18mm, 19mm (19/32-Inch, 5/8-Inch, 43/64-Inch, 45/64-Inch, 3/4-Inch). Processed wood have no burrs, do not burn black.
? Wide Application: For drilling accurate and clean-cut blind holes in solid wood board, wood composites, plywood, density board, particle board, plastic and laminated materials.
? Ideal for hinge, used on boring machines equipped with adaptors or chucks.