Ideal for use in plumbing or electrical work | Connects easily to any high powered drill | Kits come in rugged compact plastic carrying caseAmazon.ca Product Description Greenlee manufactures several electrician’s kits available providing an assortment of the most commonly used Greenlee variable pitch hole saw sizes and arbors. High-impact, rugged plastic carrying case. From the Manufacturer Greenlee manufactures several electrician’s kits available providing an assortment of the most commonly used Greenlee variable pitch hole saw sizes and arbors. High-impact, rugged plastic carrying case.