Alfa Tools ML61577 1 7/8 1/4 Hex Shank Forstner Bit Monolock 1/4-inch Hex Power Shank Forstner Bit 1-7/8-inch Diameter, 47.63 Shank 3-1/2-inch Overall Length Drills flat bottom and thru holes, Bores clean holes in thin stock, veneers or end grains Quantity - 1 per Pack