High-grade wooden 6PCS Woodworking drill five pens, 1/4,5/16,3/8,1/2,5/8,31/32 ,Soft and hardwood, MDF, Plywood, Lumber, Railroad Ties, Landscape Timber, Invisible Floating Shelf Bracket Installation, Tree stump boring, Drilling Vigas for building Pergola for up to 15” deep hole. Easy to bore into a tree stump, lumber, landscape timber, vigas, and railroad ties.