Sizes 1-1/4″ to 2″ will cut 4-1/4″ long tenons and are used for larger structural connections, such as bed to post, or fence rail to post.

Larger Sizes

ikeas cool new joint means stronger furniture and faster assembly

I hadn’t used logs as building materials until now and these made it a great thing to work with.

The body has a built-in honing guide for easy sharpening of blades on a drill-press mounted drum sander. Sizes 1-1/4″ to 2″, which require more torque to drive, are for use in larger electric drills with a 1/2″ (or larger) chuck.

Source: http://www.builderonline.com/Design/ikeas-new-joint-means-stronger--and-faster-assembly_c