Asahi (DK-312) Japanese Laminated SK5 High Carbon Steel Bench Chisel -12mm

Get the precision and handling of traditional Japanese edge tools in your workshop without paying top-tier prices. Wigley DIY brings you the Asahi DK-312 Japanese 12mm Laminated SK5 High Carbon Steel Bench Chisel, designed for tradespeople and serious DIYers who need reliable performance on timber projects. Whether you are paring out mortises or cleaning up joinery, this hand forged Japanese tool pairs easy sharpening with dependable edge retention.

The blade combines a laminated SK5 high carbon tool steel construction with a Japanese white oak handle featuring an iron back hoop to prevent splitting. SK5 steel gives you a hardness near Rc 65 when quenched, offering an ideal balance of blade toughness and abrasion resistance. Set a 30 degree bevel for soft woods, or a 35 degree bevel for hardwoods to get the best edge durability.

Features

• Asahi DK-312 Japanese 12mm Laminated SK5 High Carbon Steel Bench Chisel
• SK5 high grade Japanese tool steel laminated construction
• Easy sharpening with good edge holding property
• Quality Japanese white oak handles with an iron back hoop to prevent splitting
• SK-5 is the Japanese equivalent of American 1080, a high carbon steel with carbon between 0.75%-0.85% and 0.60%-0.90% manganese
• As quenched, has a hardness near Rc 65 and produces a mixture of carbon rich martensite with some small un-dissolved carbides
• Excess carbide increases abrasion resistance for blade toughness and superior edge holding ability
• Traditional material for chisels and woodcutting saws
• Recommended 30 degree bevel for soft woods for a good balance of performance and durability
• Recommended 35 degree bevel for hardwoods for the best edge durability
• Hand forged in Japan with a nominal chisel width of 12mm (width may vary +/- 1.0mm)

Specifications