Excel Deluxe Builder's Knife and Hobby Tool Set, Made in the USA (44288)Excel Blades Builder Set is a one of kind necessity to artists in all levels. This collection is encased within a simple yet stunning wooden case ( with a clasp lock ) that truly protects your tools for years to come. Includes knife handles that house a 4 jaw aluminum chuck for more secure blade positioning and hold than your standard light duty knife; with a snug fitting, twist lock shatter resistant safety cap to protect blade during storage.