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SKU: 06-627

Infinity Tools 1/2" Shank Flush Trim Router Bits w/ Downshear

Regular price $22.90

Cutter Diameter
Cutter Height

Buy 3 or More Router Bits, Receive 10% Off Each.
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We design our premium 1/2" shank flush trim router bits with a special Down Shear cutting geometry for extra smooth cuts. All flush trim router bits include long-lasting Micro-Grain carbide edges and top-quality bearings with dust shield. Our Silver non-stick coating makes bit clean-up a snap provides years of trouble-free service.


Infinity Straight Router Bits

Use Infinity premium straight router bits for dadoes, rabbets, pattern cuts or virtually any application requiring a straight edge. Get the most out of your investment with these high-quality straight router bits. With dozens of straight router bits to choose from we're sure to have the right size and specification for your next job.


A selection of straight router bits.

Straight Router Bits do the Work

Certainly the “bread and butter” of woodworking bits, straight router bits are available in a wide variety of sizes. Their C4 carbide-tipped cutters promise smooth long-lasting cuts, yet they’re relatively inexpensive compared to spiral bits. Available in standard, pattern routing, and flush trimming varieties … these workhorse router bits from Infinity have you covered. 

Flush Trimming Router Bit

Flush Trimming Router Bits

With a ball bearing mounted at the tip, flush trimming router bits are the perfect choice for cleaning up laminated posts, or almost any flush-trim application.  Even though a flush trim router bit is considered a “straight router bit”, Infinity router bit designs utilize a downshear angle for optimal cut quality.  

Flush trimming bit in action.

Bearing Matches Cutter Diameter

The shear angle of the carbide produces wispy shavings and clean flush trimming cuts – even in chip-out prone hardwoods like white oak.  Since the bearing matches the carbide cutter diameter, you’re guaranteed a flush cut. 

Flush trim bits are available with top or bottom bearings, depending on use.

Pattern Routing Bit

Every furniture maker or guitar builder has a prized collection of pattern routing bits.  Like flush trimming router bits, the bearing matches the cutter diameter.  However, the bearing is located on the collet side for a wide range of cuts, including both handheld and router table operations.  Shown is Infinity model #12-771B with ½” shank and ¾” cutter dia. x 2” cutting length.

Top-mounted bearing pattern bit.

Cut Close, then Pattern Rout

Use your template to mark a pencil line, and remove most of the waste with a jigsaw or bandsaw.  With the template firmly clamped in place, remove the remaining waste with a pattern routing bit.  Move the router in a counterclockwise direction for the most predictable results.

The Basic straight router bit.

Mr. Basic

Is a straight router bit the plain one?  Maybe, but what woodworking shop could function without a selection of straight router bits?  Great for cutting dados and rabbets, straight router bits will have your case goods and cabinets coming together flawlessly.

Great for making grooves.

Carcase Dados are a Snap

Chuck a straight router bit in your handheld router, and follow a straightedge to plow perfect dados!  Mr. Basic might do the simple things, but he does them well.  Crisp, clean dados are virtually splinter-free in this wide hardwood panel.

Perfectly sized grooves!

Precise Joinery

Quality carbide tipped straight router bits leave nothing to be desired.  Make sure to outfit your shop with a good variety of these value-conscious router bits.  The payoff is snug fitting joinery for all your woodworking projects. 

From thin enough for small inlays, to large material-hogging options, straight bits are available for many applications.

Wide Variety of Sizes

Straight router bits are available down to an incredibly small 1/16” diameter for fine precision work.  You’re sure to find the bit for your exact application.

Takes much of the sanding out of pattern work.

You’ll Never “Sand to the Line” Again

If you only had one part to make, there might be a case for sanding to the line.  However most projects need multiple parts, and benefit from a template and pattern routing bit.  Get unmatched speed and efficiency by pattern routing your parts!


The Infinity Cutting Tools Difference

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Frequently Asked Questions

Will these 1/2" shank flush trim bits fit my router?

Yes, as long as your router accepts a 1/2" collet, which most full-size and many mid-size routers do. Browse more flush-trim router bits.

What cutter diameters and heights are available?

These bits come in 1/2" and 3/4" cutter diameters with cutter heights of 1", 1-1/2", or 2", so you can match the bit to your stock thickness.

Why is a 1/2" shank better for flush trimming?

A 1/2" shank reduces deflection and vibration compared with a 1/4" shank, giving smoother cuts and better control, especially with taller cutters and heavier passes.

What does the down-shear geometry do?

The down-shear design directs cutting forces downward for an extra-smooth cut with reduced tear-out on the top face of the workpiece.

What carbide is used on these bits?

They use long-lasting micro-grain carbide edges that hold a keen edge and can be professionally re-sharpened for years of service.

What overall lengths are offered?

Depending on cutter height and diameter, overall length ranges across 2-5/8", 3", 3-5/8", and 4", giving you reach for thicker workpieces.

Does the bearing have dust protection?

Yes. Each top-quality bearing includes a dust shield to keep debris out and extend bearing life during heavy use.

What's the benefit of the non-stick coating?

The silver non-stick coating helps pitch and resin release from the bit, making cleanup a snap and providing years of trouble-free service.

Can I use these for pattern and template routing?

Yes. The bearing follows your template so the cutter trims the workpiece flush, which is ideal for duplicating parts. Pair them with router templates and jigs.

Should I use a tall flush trim bit in a router table?

For taller 1-1/2" and 2" cutters, a router table gives the best control and safety. Explore our router table packages and more carbide router bits.