Dewalt 3/8 x 12-In. High-Speed Split-Point Steel Drill Bit DW1610 Opened but New The 3/8 x 12-Inch High-Speed Split-Point Steel Drill Bit DW1610 is a long drill bit designed for precision drilling tasks. Manufactured by Dewalt Accessories, this drill bit features a split-point tip for accurate drilling without the need for a pilot hole. Made of high-speed steel, it offers durability and efficient performance when drilling through various materials. The 12-inch length provides ample reach for drilling deep holes in wood, metal, or plastic, making it a versatile tool for both professional and DIY applications.