This Beesley International 3 Cavity Hand Swaging Tool makes a great choice for crimping aluminum sleeves and stops. It is 25" long and offers the leverage needed for repeated crimps. Made in the USA, this durable tool will last for years. Check crimps with the included gauge and make adjustments as needed over the service life. Ovals and stops of the same size may be crimped in different grooves. Check the tool head for proper crimping positions.