• Compatibility: 4" HSS planer knife set fits 4" Delta 37-290,exact replacement for Rockwell/Delta 4" jointer and most 4"woodworking planer.
• Size: 4"×19/32"×3/32"
• Material: High Speed Steel (HSS);Hardness: HRC65
• Package: 3 Pieces hss jointer planer knives in a plastic box.
• Sharp Edge. The 4 inch HSS planer blade for 4" delta planer parts has single ultra sharp cutting edge,which is suitable for planing a wide range of wood.
• Excellent Effect. The hss planer knives are precisely machined and polished by the instrument, and the cutting edge is sharp for smoothly planing wood surface.
• Durability.4 inch HSS industrial planer jointer knives undergo a unique machining procedure that high temperature heat treatment.This improves the hardness, toughness, corrosion resistance and high temperature resistance of the jointer planer knivse.

• Product Dimensions ‏ : ‎ 4.02 x 0.59 x 0.1 inches; 2.12 ounces
• Date First Available ‏ : ‎ December 23, 2020
• Manufacturer ‏ : ‎ Dirtech
• Country of Origin ‏ : ‎ Japan