1/2in Pro Series Tenon Cutter • Dual Blade Cutting Technology, Precision, CNC Machined • Billet, T651 6061 Aircraft Grade Aluminum, Hardened, Precision Ground High Carbon Tool Steel Blades • Blades can be Re-sharpened or Replaced, Threaded Replaceable Shank • In-Sight Measurement System, measure & see tenon during cutting operation • Quick Stop Tenon System allows user to place a dead stop internal to the tool for quick, accurate repetitive cutting • Lifetime Guarantee • This tenon joint is perfect for the hardwood chair builders. Cutting those chair spindles, stretchers and stringers can be easily done with your cordless drill and this tool. This heavy-duty, compact, small joint cutter is great for all the delicate and architectural projects you have. Made in the USA.