Chain Saw Sharpening Tool Attachment Rotary Power Drill Hand Sharpener Adapter Description: 100% brand new and of high quality Easy for apply and use It can be easily screwed onto an electric grinder and can easily sharpen chains and serrated blades. High-speed steel grinding heads have features of high hardness, high wear resistance, high heat resistance and impact resistance, so you don't have to worry about it being damaged. Specifications: Color: as shown Weight: about 41g Material: high speed steel Sharpening attachment length: about 70mm Ruler length: about 70.09mm Package include: 1xsharpening attachment 3xpolishing tools 1xruler Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow slight deviation for the measurement data and make sure you do not mind before ordering. 10 pcs mini size cobalt drill bit set for micro hole drilling into various material, it contains 2 pcs of each 1mm(3/64"), 1.5mm(1/16"), 2mm(5/64"), 2.5mm(3/32"), 3mm(1/8") diameter drill bit Very tough drill bit for heavy duty work drilling into stainless steel, light-gauge metal, high-carbon steel, aluminum and ally steel, cast iron, abrasive alloy metal, other hard metal and hardened steel. 4 times life time than normal metal drill bit when drilling into PCB board, plastic, wood, jewelry, sheet metal and normal steel M35 Cobalt drill bits are made from industrial grade High Speed Steel with 5% cobalt alloy that is heat and abrasion-resistant 135-degree split-point tip starts drilling immediately with less force and eliminates walking or skating across the work surface Straight shank fits with electric and cordless power drill and rotary drill. Drill bits are packed in a Plastic Bag