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FunctionLINE Extra

This innovative lockset recess aggregate features an offset design. Therefore, it is optimal for cutting lockset recesses. Also, it can be used for other boring operations.

Use For:

  • routing out lockset recesses
  • use ER16 output on back for cutting lock plates
  • other boring or routing operations


  • Offset design optimized for longer tooling
    operations such as mortising
  • ER32 output on front, ER16 on back
  • 15,000 RPM tool speed for faster cutting


  • Collet nuts & wrenches
  • ER collets sold separately

Download Product Spec Sheet

Additional Resources

Safety Guidelines

BE CAREFUL. Always wear eye and ear protection along with dust masks. Avoid using bits while in loose clothing. Keep hands, body, clothing and hair away from the cutter. Do not remove safety guards, and be sure to always feed against the cutter rotation. Never use dull or damaged cutters. Disconnect power when changing bits or making adjustments, and always leave the power disconnected when not in use. Follow all safety recommendations of the power tool manufacturer. Peak Toolworks assumes no responsibility for defects, damage, or injury (direct or indirect) caused by misuse, abuse, alteration or modification of any product (including sharpening).

WARNING: Re-grinding of Peak Toolworks products will produce dust of potentially hazardous ingredients. Always read and follow owner’s safety manual of all power machinery before using bits. Always use eye protection while using this or any carbide cutting product.

WARNING: Peak Toolworks products can expose you to chemicals including lead and/or cobalt, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to http://www.P65Warnings.ca.gov.

WARNING: Drilling, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a mask or other safeguards for personal protection. For more information go to http://www.P65Warnings.ca.gov.