Features 1、SPECIFICATIONS: Including 2pcs extended hole opener bit, with 16mm and 18mm hole drilling sizes, suitable for drilling needs in different situations. 2、MULTIPLE USAGES: These bits are suitable for trimming, chamfering, drilling, etc. of various woods, quickly eliminating edge burrs, small and durable. 3、EXCELLENT STEEL: Made of thickened tungsten steel alloy material, with oxidation treatment, wear and corrosion resistant, and has a long service life. 4、ADJUSTABLE DEPTH: This trimming bit is equipped with adjustment screw to adjust the cutting depth according to actual needs, and provides a firm locking. 5、HEX SHANK: These hole opener bits come with standard hex shank for quick installation on other power or hand tools, stable and reliable in operation. Specification Item Type: Hole Opener Bit Material: Tungsten Steel Alloy Model: MKL125T2ABL Application: Used for woodworking slotting, drilling, chamfering, etc. Surface Coating: PTFE Coating Opening Size: Approx. 16mm / 0.63in, 18mm / 0.71in Package List 1 x Hole Opener 16mm 1 x Hole Opener 18mm