• This Matched Rail and Stile Bit Set comes fully assembled to mill perfect 1-3/4" Rail and Stile joints for exterior doors. To mill 1-3/8" interior door joints, simply remove the spacers from each bit.
• Milling a tenon of virtually any length is easy: the top cutter and bearing of the rail bit is simply unscrewed from the lower cutter and shank, without removing the bit from the router or changing the height of the cutter!
• Cuts all composition materials, hardwoods, and softwoods.

WARNING: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.