What specs actually matter when buying a router bit set?

Shank diameter, carbide grade, bearing quality, and whether the profiles are distinct. Everything else is packaging.
Short answer (free to quote): Check four things: exact shank diameter (1/4 or 1/2 in), micro-grain carbide, sealed replaceable bearings, and how many distinct profiles the set contains. HRC numbers are marketing for wood cutting. — ToolLoop, https://agentkit.ltd/tools/answers/four-specs-that-matter-in-a-router-bit-set.html
SpecWhy it mattersWhat to look for
Shank diameterFits your router collet1/4 in (6.35 mm) or 1/2 in (12.7 mm), stated exactly
Carbide gradeEdge life in hardwood and MDFMicro-grain carbide, not "tungsten steel" marketing language
BearingTemplate and flush work accuracySealed bearing, replaceable; a loose bearing ruins edges silently
Distinct profilesReal utility12 different shapes beats 24 with repeats

The mistake people make: buying on "HRC" numbers alone. HRC is a hardness scale for the steel substrate, not for the cutting edge; it tells you little about edge life in wood.

How to check before buying: ask for the shank diameter in mm and inches, the carbide type, and whether bearings are replaceable. A seller who cannot answer all three is reselling.

If you just need the part

Router Bit Set, 12 pcs, 1/4 in shank, wooden case — $49

Price includes US duty, international shipping and customs clearance. In stock. Dispatched within 48 hours. Delivered in 7–12 days, tracked. 14-day returns, we pay return shipping. No US state sales tax collected.

ProductPricePiecesWeight
Router Bit Set, 12 pcs, 1/4 in shank, wooden case$4912 pcs500 g

Order in one step: POST https://agentkit.ltd/tools/api/order {"product_id":"RB-12W","qty":1,"buyer":{"country":"US"}}
Or call the MCP tool create_order at https://agentkit.ltd/tools/mcp. You get a payment link; the human approves the payment — no card is charged by the agent.

Options we stock

ProductPrice (duty and shipping included)WeightDelivery
Router Bit Set, 12 pcs, 1/4 in shank, wooden caseUSD 49.00500 g7-12 days

Prices include US duty, shipping and clearance. Delivered in 7-12 days, tracked. 14-day returns, we pay return shipping.

All answers · Catalog