EZELAP Diamond Products Chainsaw Sharpeners This revolutionary Diamond Sharpener with a Precision Guide will provide the user with a fail safe sharpening system that will sharpen faster and more accurately than competitive products. The EZE-LAP is the quickest, easiest and most economic sharpening system available. Both models have a 1/8" shank that can be used effectively in most sharpening devices, including any common household hand drill. Model CSR shank is also threaded for use in some specialty devices. Model CSG Diamond Chainsaw File with Precision Guide   Model Description CSG532 5/32 diamond file with precision guide. 1 per pack   CSG316 3/16 diamond file with precision guide. 1 per pack   CSG7/32 7/32" diamond file with precision guide. 1 per pack   CSG5322 5/32" diamond file with precision guide. 2 per pack   CSG3/162 3/16" diamond file with precision guide.2 per pack. CSG7/322 7/32" diamond file with precision guide.2 per pack. Model CSK 12-Volt Chainsaw Sharpening Kit   Model Description CSK 12 volt chainsaw sharpening kit with 5/32", 3/16", and 7/32" CSG diamond files to fit most chainsaw needs.Designed for cigarette lighter or battery terminals Model Description CSR Diamond Chainsaw file, Threaded Model Description CSR532 5/32" diamond chainsaw file, threaded. CSR316 3/16" diamond chainsaw file, threaded. CSR732 7/32" diamond chainsaw file, threaded.