Providing Tools for ALL TRADES... Klein Tools is dedicated to designing and manufacturing innovative tools that are recognized for durability and dependability, and proven to withstand the different jobsite conditions that tradespeople encounter daily. Industry Specific Tools are found in the Contractor, Construction, HVAC/R, Plumbing, Telecom, Municipal, and Industrial catalogs. Click here for Klein's full line of products. ...trusted by professionals for over 165 years