
The 3-Piece Chisel Expansion Set
Includes 1/8", 3/8", + 5/8" chisels + FREE Sharpening Square
A Perfect Addition to Your 4-Piece Bench Chisel Set
Add three sizes to your Blue Spruce 4-Piece Bench Chisel Set with the 1/8", 3/8", and 5/8" Expansion Set. Designed as the perfect companion, these additional sizes give you more options for fine joinery, precise fitting, and detailed work.
Like every Blue Spruce Bench Chisel, each blade is made from cryogenically treated A2 tool steel, surface ground, lapped, polished, and prepared for work right out of the box. Choose Curly Maple or Bolivian Rosewood handles, and receive a FREE Blue Spruce Sharpening Square with your Expansion Set.
Limited-Time Bonus
Includes FREE Sharpening Square
When you grab the Expansion Set today, we’re tossing in a FREE Sharpening Square! Compact, deadly accurate, and indispensable when sharpening chisels and plane blades and you can check your projects for square. It’s the ultimate sidekick to your freshly completed chisel collection.
New to Blue Spruce Bench Chisels?
The 3-Piece Expansion Set is designed to add sizes to an existing Bench Chisel collection. If you're starting your collection, explore our standard 4-, 6-, and 9-piece Bench Chisel Sets to choose the range of sizes that best fits the work you do. You have your choice of Resin-Infused Curly Maple or Bolivian Rosewood handles.
Choose Your Sizes. Build Your Collection.
Shop the Bench Chisel options below to select a complete set or individual sizes for your bench.
Blue Spruce Toolworks
Bench Chisels

Work-Ready Precision
Blue Spruce Chisels come surface ground, lapped and polished to an unmatched level of performance. A truly sharp chisel edge requires two perfectly flat, polished faces—but most chisels don’t come that way. They typically need hours of sharpening, honing, lapping, and polishing before they’re ready for serious work. Blue Spruce Chisels eliminate that hassle and comes with top of the line preparation.
Superior Edge Retention
Perfectly sharpened is a great first step, but how does it hold its edge? Each chisel is machined from A2 tool steel, then double-tempered and cryogenically treated. The tempering and cryo treatments result in an incredibly fine grain structure and a hardness of Rockwell C-60 to C-62. These chisels take and hold an edge like no other.
Perfect Ergonomics
Bench Chisel blades extend 4-1/2" beyond the ferrule. The standard chisel handles fit most hands comfortably for both mallet work and delicate paring cuts. You have two choices of wood for the handle: Resin-Infused Figured Maple or Bolivian Rosewood.
Sharpening Square
The compact design of the Blue Spruce Sharpening Square allows you to check the chisel or plane iron while it’s still in the guide, saving you time and effort. And, as one solid piece of stainless steel, water, oil and dross just wipe right off. And, we made the square just 3/32" thick so it’s easier to get proper alignment. You will get unmatched precision in a tool that’s perfectly sized for its job.