Size: 13-1/8"×1"×1/8" Material: High Speed Steel (HSS), Hardness:HRC 65 Fit for Model: 13-1/8” HSS jointer blades are compatible with Delta RC-33, DC-33 Rockwell, Freud C630 and Most 13" woodworking jointer planers Package: 3 pieces HSS planer blades in a plastic box Single Cutting Edge: 13-1/8 inch HSS planer jointer knife has a sharp edge that is ground by equipment and enough to cutting kinds of wood easily Durable: Woodworking replaceable planer jointer blades are durable due to high quality high speed steel raw materials. The vacuum heat treatment technology improves wear resistance and allows the planer blade to plane smoothly Excellent Performance: 13-1/8" hss planer blade brings a silky cutting experience and improve your work efficiency 13" x 7/8" x 1/16"：Fit for DW735 7352 735X Planers 12-3/5" x 7/8" x 1/16"：Fit for DW734 7342 Planers 12-3/5" x 1-1/16"x1/8"：Fit for DW733 7332 Planers 13-9/16"x5/6" x1/12"：Fit for Ryobi AP1301 Ridgid TP13001 TP13002 TP13000 AC8630 Planers 12-1/2"x3/4" x1/15"：Fit for Delta 22-540 22-547 TP300 Jet 708522 JWP-12-4P Craftsman 233780 Harbor Freight Wood Planers 12-3/5"x15/32"x1/17"：Fit for Delta 22-560 22-562 22-565 TP400LS Craftsman 21758 Wen 6550 Triton TPT125 Grizzly TP305 Porter Cable PC305TP Planers 15"x 1"x 1/8"：Fit for Delta 22-677 DC-380 Grizzly G0453 G1021 G6701 JET 708529G JWP-15CS JWP-15HO Freud C045 Reliant DD-37 Powermatic Planers Note: 0.1-0.3mm error might exist due to manual measurements,thanks for your understanding， Knives are sharp please be careful When using blades， Please don't let children touch it， Don't put it in wet place， Please feel free to contact customer service, if you have any questions or dissatisfaction.