The Jet 708801DX J6-KQC Quick Set 6 in. Jointer Knife is a replacement jointer knife set for compatible 6 inch jointers. This is a jointer accessory designed for restoring cutting performance on a straight knife cutterhead. Model Number: 708801DX. If your machine is leaving rougher cuts, tear-out, or inconsistent edges, a fresh set of properly sized knives is one of the first things to address.

This replacement set is made for quick set installation, which is the real value here. On a jointer, setup time matters almost as much as the edge itself. A quick-set knife helps simplify the changeover process so you can spend less time dialing in the machine and more time flattening faces and jointing edges. The precision sharpened blade also gives you the clean, accurate cut quality you want from a jointer when preparing stock for assembly.

The knife size is 6-1/16 x 3/4 x 5/64 inches, and the set includes three knives. That makes it a straightforward replacement option for a 6 inch machine using a straight knife cutterhead. The steel construction is what you would expect on this kind of consumable accessory, and the genuine replacement fit is important because a jointer knife that is even slightly off in size or profile can create setup headaches and poor finish quality.

Compatibility is the big buying decision with this part. Product data identifies it as fitting 6 inch jointers with a quick-change head, and it is specifically listed for the 6 inch 708457DXK. If you are maintaining that machine, sticking with the correct replacement knife avoids guesswork on size, mounting pattern, and fit.

This is the right buy for woodworkers, cabinet shops, school shops, and serious DIY users keeping an older or current 6 inch jointer running properly. It is not a universal knife for every jointer on the market, so the smart move is matching your machine and cutterhead style before ordering. If your jointer takes this knife, it is the kind of maintenance part that keeps the whole machine working the way it should.

Jet 708801DX J6-KQC Quick Set 6 in. Jointer Knife for Keeping a 6 Inch Jointer Honest

This is the right kind of replacement part: machine-specific, properly sized, and built to get your jointer cutting clean again without turning knife changes into a whole afternoon.

• Who it's for: Woodworkers and shop owners maintaining a compatible 6 inch jointer, especially the listed 708457DXK.
• Why it stands out: The quick-set design and precision sharpened edge are the two things that matter most here. Easier setup and accurate cuts.
• Worth knowing: This is a fit-critical accessory, not a universal jointer knife. Make sure your machine uses a quick-change straight knife setup before you order.

• What size are these knives? Each knife measures 6-1/16 x 3/4 x 5/64 inches.
• How many knives are in the set? This set includes 3 knives.
• What machines does this fit? It is listed for compatible 6 inch jointers with a quick-change head and is specifically referenced for the 6 inch 708457DXK.
• What type of cutterhead is this for? It is for a straight knife cutterhead.