Anti slip triangular handle design, suitable for safe and more reassuring use Widely applicable, can be used for opening holes in materials such as wood panels, gypsum boards, density boards, thin iron sheets, color steel tiles, and more Bimetallic drilling rig, high precisions, long-lasting without damage, high wear resistance of application: Mainly suitable for benches drills, handheld drills, rechargeable drills, and more Accurate positioning, quick drilling, Manufacturer: ERRORY