{"id":6744,"date":"2026-09-17T10:54:30","date_gmt":"2026-09-17T02:54:30","guid":{"rendered":"https:\/\/www.carpentryaccessories.com\/hss-vs-tct-planer-blades-material-life-and-application\/"},"modified":"2026-09-17T10:54:30","modified_gmt":"2026-09-17T02:54:30","slug":"%d8%a3%d8%af%d9%88%d8%a7%d8%aa-%d8%a7%d9%84%d8%b7%d8%ad%d9%86-hss-%d9%88-tct-%d8%a7%d9%84%d9%85%d8%a7%d8%af%d8%a9-%d8%a7%d9%84%d8%b9%d9%85%d8%b1-%d9%88-%d8%a7%d9%84%d8%aa%d8%b7%d8%a8%d9%8a%d9%82","status":"publish","type":"post","link":"https:\/\/www.carpentryaccessories.com\/ar\/hss-vs-tct-planer-blades-material-life-and-application\/","title":{"rendered":"\u0623\u062f\u0648\u0627\u062a \u0627\u0644\u0637\u062d\u0646 HSS \u0648 TCT: \u0627\u0644\u0645\u0627\u062f\u0629 \u0627\u0644\u0639\u0645\u0631 \u0648 \u0627\u0644\u062a\u0637\u0628\u064a\u0642"},"content":{"rendered":"

When you buy planer or jointer blades you face one core choice: HSS (high-speed steel, e.g. W18)<\/strong> or TCT (tungsten carbide tipped)<\/strong>. Both cut wood; they differ in hardness, lifespan and price. Here is how to choose.<\/p>\n

What Is HSS (W18)?<\/h2>\n

W18 is a tungsten high-speed steel grade common in woodworking blades. It is tough, easy to regrind, and inexpensive. Our W4 HSS Planer Blade<\/a>, W18 HSS Planer Knife 330-510mm<\/a>, W18 HSS Planer Knife 600-650mm<\/a> and W18 HSS Planer Blade 100-150mm<\/a> are typical HSS options.<\/p>\n

What Is TCT?<\/h2>\n

TCT blades braze a thin tungsten-carbide edge onto a steel body. Carbide is far harder than HSS, so it stays sharp much longer \u2014 especially on abrasive sheet goods. See TCT Planer Blade<\/a>, TCT Electric Planer Blade<\/a>, TCT Planer Blade 82×5.5×1.2mm<\/a> and the carbide inserts on Spiral Cutter Head Blades<\/a>.<\/p>\n

HSS vs TCT: Comparison<\/h2>\n\n\n\n\n\n\n\n
Factor<\/th>\nHSS (W18)<\/th>\nTCT (Carbide)<\/th>\n<\/tr>\n
Hardness<\/td>\nMedium<\/td>\nVery high<\/td>\n<\/tr>\n
Edge life<\/td>\nShorter<\/td>\n3-5x longer<\/td>\n<\/tr>\n
Regrind<\/td>\nEasy, cheap<\/td>\nNeeds pro sharpening<\/td>\n<\/tr>\n
Cost<\/td>\nLow<\/td>\nHigher<\/td>\n<\/tr>\n
Best wood<\/td>\nSoftwood, clean stock<\/td>\nHardwood, plywood, MDF<\/td>\n<\/tr>\n<\/table>\n

Which Should You Buy?<\/h2>\n

Choose TCT<\/strong> if you cut hardwood, plywood, MDF or reclaimed wood<\/strong> \u2014 the carbide shrugs off abrasives. Choose HSS<\/strong> for softwood and general shop work<\/strong> where you regrind often and want low cost. Many shops keep both: TCT for sheet goods, HSS for everyday pine.<\/p>\n

Frequently Asked Questions<\/h2>\n

Is TCT better than HSS for planer blades?<\/h3>\n

For hardwood, plywood and MDF, yes \u2014 TCT lasts far longer. For softwood and frequent regrinding, HSS is cheaper and good enough.<\/p>\n

Can HSS blades be reground?<\/h3>\n

Yes. HSS is easy to regrind in any sharpening shop, which keeps running costs low.<\/p>\n

Why does TCT cost more?<\/h3>\n

The brazed carbide edge is more expensive to make and must be professionally sharpened, but its long life offsets the price.<\/p>\n

Which blade for MDF?<\/h3>\n

Use TCT. MDF is highly abrasive and wears HSS quickly.<\/p>\n

Do I need different blades for jointer vs planer?<\/h3>\n

They often share the same blade type; match length, width and thickness to the machine, not the function.<\/p>\n