Industrial Rubber Guide Shoes and Guide Noses are Designed for Economy in use on Low-Budget Shallow Holes. This equipment is available either as a Full Shoe to make up on casing, or as a threaded Nose to make up on a Customer's own Casing Coupling. Guide Shoes and Guide Noses are made of high-strength Aluminum Alloy and are drillable. They are available in sizes from 2 3/8" through 13 3/8".