hole saw bit

Complete Story: http://myumi.ch/6wpNq
The U-M Biological Station is one of three Michigan sites where U-M researchers recently installed more than 150 motion-triggered “camera traps” to capture snapshots of the state’s diverse wildlife.
The multi-year wildlife survey will yield hundreds of thousands of snapshots and is the largest-ever camera-trap study of Michigan wildlife. Students from schools across southeastern Michigan will help identify the animals through a new web-based program called Michigan ZoomIN: https://www.zooniverse.org/projects/m....