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Choosing the right router bit makes a big difference in cut quality, feed rate and how long the bit lasts. Ultra-Shear offers carbide-tipped and solid carbide bits made in its Strongsville, Ohio facility.
This comparison looks at seven Ultra-Shear bits for common woodworking tasks: edge profiling, plywood dadoes, decorative moldings, V-grooves, general spiral cutting, T-slot joinery, and undersized plywood. For more on router safety and setup, see our guide to woodworking power tools.
Every specification on this page comes from the manufacturer’s own product page, checked on 29 October 2026. We have not used these products ourselves, so the picks are based on published specifications only.
For a broader look at tool choices, read our article on woodworking tools for beginners and cutting wood safely.
How we chose these
- Carbide type and construction: Solid carbide or carbide-tipped affects edge life and sharpness. Ultra-Shear uses standard carbide and a nano-grain Super-C carbide on some bits.
- Flute count and geometry: More flutes can mean faster feed or more cuts per inch. Spiral bits have up-cut or down-cut options for chip evacuation and surface finish.
- Shank size: 1/4″ and 1/2″ shanks determine compatibility with your router collet. Some bits are available in both sizes.
- Intended use: Bits are designed for specific tasks like plywood, edge profiles, joinery, or jig hardware. Matching the bit to the material and cut type is key.
All Ultra-Shear bits are made in the USA, according to the maker.
Comparison table
| Product | Shank | Flutes | Material | Cut Direction | Best For |
|---|---|---|---|---|---|
| Double-Edge Cutter | Not stated | 3 | Carbide tipped | Not stated | Matching stock thickness with spacers |
| Plywood Sized | 1/4″ or 1/2″ | 2 or 3 | Carbide tipped | Down-shear | Plywood with thin face veneers |
| Table Edge Ogee | Not stated | 2 | Carbide tipped | Not stated | Shadow detail on edges |
| V-Groove CNC | 1/4″ or 1/2″ | 2 | Carbide tipped | Not stated | Folding miter joints, lettering |
| Spiral 1/2″ Shank 3-Flute | 1/2″ | 3 | Solid carbide | Up-cut or down-cut | Dadoes, rabbets, full-edge cutting |
| T-Slot Track Clamp & Hex Bolt | Not stated | Not stated | Solid carbide (Super-C) | Not stated | Jigs and fixtures with track clamps or 1/4″-20 hex bolts |
| Undersized Plywood | 1/4″ (listed sizes) | 2 (listed sizes) | Super-C solid carbide / carbide tipped | Down-cut | Undersized plywood for snug joinery |
Shank sizes and flute counts are as stated by Ultra-Shear. ‘Not stated’ means the maker did not list that spec on the product page.
1. Ultra-Shear Double-Edge Cutter Router Bits: for rounding over both sides of stock at once
These bits use a stacked arrangement of cutters, spacers, and shims so you can adjust the setup to match your stock thickness and round over both edges at once. Ultra-Shear states that the three-flute cutters provide more cuts per minute than typical two-flute designs. The bearing guides the cut along straight or curved edges. The cutters are sold individually or as a set that includes one shaft, spacers, shims, and a bearing, plus all four cutter pairs.
- Available profiles: double radius and double chamfer (Ultra-Shear)
- Set includes one shaft, spacers, shims, and guide bearing (Ultra-Shear)
- American-made in Northeast Ohio (Ultra-Shear)
Pros: Rounds both edges at once; 3-flute cutters; one shaft takes several cutter pairs
Cons: Shank size not stated by the maker; only for edge rounding and chamfering
Check the Ultra-Shear Double-Edge Cutter Router Bits on Amazon
2. Ultra-Shear Plywood Sized Router Bits: for clean dadoes and grooves in plywood
Ultra-Shear says all five bits have a gentle down-shear that slices into the material face, leaving a clean edge even on very thin veneers. The four larger bits use a three-flute design, which the maker says improves surface finish and allows faster feed rates. Diameters are 9mm, 15/32″, 18mm, 23/32″, and 3/4″. Each size can be bought separately, or all five come in a set.
- Cutting lengths: 3/4″ for all sizes (Ultra-Shear)
- Shank sizes: 1/4″ for 9mm and 15/32″ bits, 1/2″ for the larger three (Ultra-Shear)
- American-made in Northeast Ohio (Ultra-Shear)
Pros: Down-shear geometry prevents tearout on veneers; 3-flute on larger bits for better finish; specific sizing for plywood
Cons: Sized for plywood work; the smallest size is not part of the 3-flute group
Check the Ultra-Shear Plywood Sized Router Bits on Amazon
3. Ultra-Shear Table Edge Ogee Router Bits: for decorative edges on tables, shelves, and moldings
Unlike standard ogee bits that simply place a bead above a cove, these bits add a flat section before the second curve, which Ultra-Shear says creates a shadow line and a lighter look. They work for table edges, shelves, picture frames, cabinetry, and trim. Three profile widths are offered: 1/2″, 3/4″, and 1″, sold individually or as a set.
- Profile widths: 1/2″, 3/4″, 1″ (Ultra-Shear)
- 2-flute design (Ultra-Shear)
- American-made in Northeast Ohio (Ultra-Shear)
Pros: Unique ogee profile with shadow line; three sizes for different scale projects; can create foot detail on routed bowls
Cons: Shank size not stated by the maker; 2-flute design
Check the Ultra-Shear Table Edge Ogee Router Bits on Amazon
4. Ultra-Shear V-Groove CNC Router Bits: for V-grooves, sign lettering, and folding miter boxes
These 90-degree V-groove bits are made for CNC work, but Ultra-Shear notes they also function in router tables and hand-held routers. The folding miter design cuts a V-groove that lets the wood bend into a box shape. Diameters range from 3/8″ to 1-1/2″, with cut depths from 3/16″ to 3/4″. Sets are offered for 1/4″ shank, 1/2″ shank, or both.
- All bits are 90-degree included angle (Ultra-Shear)
- Cut depths: 3/16″ to 3/4″ depending on diameter (Ultra-Shear)
- American-made in Northeast Ohio (Ultra-Shear)
Pros: Folding miter capability for box making; wide range of sizes; available in 1/4″ and 1/2″ shanks
Cons: Only 2-flute; limited to 90-degree V-grooves
Check the Ultra-Shear V-Groove CNC Router Bits on Amazon
5. Ultra-Shear Spiral CNC Router Bits – 1/2″ Shank, 3-Flute: for heavy-duty dadoes, rabbets, and mortises
These 1/2″ diameter solid carbide bits have 3-flute spiral geometry. Ultra-Shear says the three-flute design increases the number of cuts per spindle revolution by half compared to two-flute bits, so you can feed faster or get more cuts per inch for a smoother edge. Cut lengths of 1″, 1-1/4″, 1-1/2″, and 2″ are available, each in up-cut and down-cut versions. Up-cut bits evacuate chips from the kerf, making them suitable for solid wood; down-cut bits press fibers down to avoid lifting, which is especially useful on plywood.
- Cutting diameters: 1/2″ (Ultra-Shear)
- Overall lengths: 3″ to 4″ depending on cut length (Ultra-Shear)
- American-made in Strongsville, Ohio (Ultra-Shear)
Pros: Solid carbide for long life; 3-flute for faster feed or better finish; multiple cut lengths; up-cut and down-cut options
Cons: 1/2 inch shank only, so it needs a router with a 1/2 inch collet
Check the Ultra-Shear Spiral CNC Router Bits – 1/2" Shank, 3-Flute on Amazon
6. Ultra-Shear T-Slot Router Bits – Track Clamps & Hex Bolts: for cutting T-slots for jig hardware
The US5450TSSC bit makes a 7/16″ T-slot that fits 1/4″-20 hex head bolts, and the US3054 bit cuts a slot for track saw clamps. Ultra-Shear says each bit cuts the T-slot and a top chamfer in one pass. A clearance channel may be needed with routers of 1-1/2HP or less. The bits are made from Super-C solid carbide.
- Two profiles: one for 1/4″-20 hex bolts, one for track clamps (Ultra-Shear)
- Single-pass T-slot and chamfer (Ultra-Shear)
- Covered by US Patent D1,073,754 (Ultra-Shear)
Pros: Cuts T-slots without needing extruded track; uses common hardware; solid carbide
Cons: Shank size not stated by the maker; made for jig building; Ultra-Shear says routers of 1-1/2HP or less may need a clearance channel
Check the Ultra-Shear T-Slot Router Bits – Track Clamps & Hex Bolts on Amazon
7. Ultra-Shear Undersized Plywood Router Bits: for plywood that is slightly thinner than nominal size
These bits are ground slightly under nominal plywood dimensions to account for the actual thickness of sheet goods. All bits have down-cut spiral geometry, which Ultra-Shear says slices into the face to leave a clean edge on thin veneers. The two smallest are solid carbide with Super-C nano-grain structure for edge sharpness and retention; the five larger bits are carbide-tipped with a steel shank. Sizes include 7/32″ (for 1/4″ nominal) and 6mm.
- Down-cut spiral geometry on all bits (Ultra-Shear)
- Super-C carbide on solid carbide bits for toughness (Ultra-Shear)
- American-made in Strongsville, Ohio (Ultra-Shear)
Pros: Undersized for exact plywood fit; down-cut for clean edges; Super-C carbide for long life
Cons: Only two sizes listed with 1/4″ shank; other sizes not detailed in source; limited to plywood applications
Check the Ultra-Shear Undersized Plywood Router Bits on Amazon
Which one fits you
| Your situation | Look at | Why |
|---|---|---|
| You need to round over both edges of a board in one pass | Double-Edge Cutter Bits | Stacked cutters with spacers match stock thickness and cut both sides at once. |
| You cut a lot of plywood and want chip-free dadoes | Plywood Sized or Undersized Plywood Bits | Down-shear geometry slices into the face veneer for a clean edge. |
| You want to add a decorative ogee profile to table edges or shelves | Table Edge Ogee Bits | The extended ogee creates a shadow detail that lightens the look. |
| You build jigs and want to use track clamps or hex bolts | T-Slot Bits | Cuts a T-slot and chamfer in one pass for common hardware. |
Practical tips
- Match the shank size to your router collet. Many Ultra-Shear bits come in both 1/4″ and 1/2″ shanks, but some are only one size.
- For plywood, choose down-cut spiral bits to prevent surface fibers from lifting. For solid wood, up-cut bits clear chips better.
- Consider the number of flutes: Ultra-Shear says 3-flute bits allow faster feed or more cuts per inch than 2-flute bits.
- If you work with undersized plywood, look for bits specifically ground to the actual thickness rather than the nominal size.
FAQ
What is the difference between up-cut and down-cut router bits?
Up-cut bits evacuate chips from the kerf and work well for dadoes and solid wood. Down-cut bits cut downward into the material, which Ultra-Shear says gives a super clean edge on cabinet-grade plywood.
Where are Ultra-Shear router bits made?
Ultra-Shear states that all bits are made in their Strongsville, Ohio facility.
What is Super-C carbide?
According to Ultra-Shear, Super-C is a nano-grain carbide that optimizes edge sharpness, edge retention, and toughness for demanding materials like plywood and hardwoods.
Can I use these bits in a hand-held router?
Many Ultra-Shear bits are suitable for hand-held routers, router tables, and CNC machines. The maker notes that for T-slot bits, a clearance channel may be needed with routers of 1-1/2HP or smaller.
Sources
Specifications from each manufacturer’s product page, checked 29 October 2026: Ultra-Shear Double-Edge Cutter Router Bits, Ultra-Shear Plywood Sized Router Bits, Ultra-Shear Table Edge Ogee Router Bits, Ultra-Shear V-Groove CNC Router Bits, Ultra-Shear Spiral CNC Router Bits – 1/2" Shank, 3-Flute, Ultra-Shear T-Slot Router Bits – Track Clamps & Hex Bolts, Ultra-Shear Undersized Plywood Router Bits. Makers can change specifications; check the product page before you buy.
