The 3M Hookit Straightline Air File Shoe features a 2-3/4” x 16” size, which fits any standard “Straightline” air file sander with two bolts. This file shoe also lets you instantly upgrade to the Hookit hook-and-loop attachment system for quick, easy changeouts when using Hookit abrasive sheets.A File Shoe for Faster, More Efficient Air File SandingIt upgrades your sanding capabilities in so many ways – our 3M Hookit Straightline Air File Shoe is a simple, effective tool for “Straightline” (16”) air file sanders with dust evacuation systems. This durable straight line file shoe is sized to fit a full range of common air file sanders in collision repair. And the Hookit hook-and-loop surface on the file shoe lets you instantly install our Hookit attachment system to your air file sander for fast, easy sheet changeouts without tools. The durable rubber face reinforces the abrasive sheet, so it is less likely to yield or deflect when it comes in contact with the substrate. About Our Hookit Attachment SystemThe Hookit hook-and-loop feature makes for fast and easy attachment, removal and re-attachment of Hookit abrasive sheets and facilitates use and re-use of individual sheets for high material cost efficiency. The facing surface on the Hookit Straightline Air File Shoe has J-shaped hooks that instantly grip the brushed nylon loops on our Hookit abrasives. It’s simple: just slap the sheet on and start sanding. Sheets remove just as cleanly and easily, and can be re-used again and again for the extent of the abrasive life. The Hookit system is designed for work spaces where adhesive-backed sheets may become contaminated by dust, dirt, or flying debris. Better Science for Better Sanding from 3MOur file shoes are excellent examples of how a single tool can deliver big advantages across a wide range of sanding applications in collision repair. With its easy attachment to common sanders and quick Hookit attachment, the 3M Hookit Straightline Air File Shoe is another way that 3M applies science to the lives of auto repair technicians, improving efficiency, throughput and value.