Best Whiteside Straight Spiral Trim Bits in 2026

Whiteside Router Bits are made with Premium Carbide

Precision ground for proper balance at high RPM

Industrial Quality

Specs: Cut Depth flush, 1/8",1/4",5/16",3/8",7/16",1/2", Number of Cutters 2, Overall Dia. 1-3/8", Overall Length 2-1/4", Shank Dia. 1/4", Carbide Height 1/2"

Each set includes interchangeable bearings and a wrench to cut multiple depths with a single bit

Great for furniture makers, cabinetmakers and carpenters

Specs: Bearing Dia. 1/2", Number of Cutters 2, Overall Dia. 1/2", Overall Length 2-13/16", Shank Dia. 1/4", Carbide Height 1"

Cuts all composition materials, plywoods, hardwoods, and softwoods

Use on hand-held or table-mounted routers

Specs: Bearing Dia. 1/2", Number of Cutters 2, Overall Dia. 1/2", Overall Length 3-5/16", Shank Dia. 1/4", Carbide Height 1-1/4"

Perfect for templates placed above or below the work piece, or to trim laminates or veneer perfectly flush with countertops, shelving and other projects

Freud’s Top & Bottom Bearing Bits let you rout half the curve in one direction, flip the work piece over and rout the other half in the opposite direction without repositioning your pattern

Specs: Number of Cutters 2, Overall Dia. 1-1/2", Overall Length 3", Shank Dia. 1/2", Carbide Height 1-1/4"

Freud Tico Hi-Density Carbide

Clean cuts in solid wood, plywood and composites

RFT5200

Spiral Flush Trim Up Cut

Industrial Quality

DURABLE – Multipurpose wood router bit set – delivers precision and durability

MULTI-PURPOSE – Varied 15-bit set – use for finishing in a wide range of applications

VERSATILE – bits are designed for processing soft and hard wood as well as wood composites

Flush trim templates and patterns for a wide variety of projects

Premium C3 micro-grain tungsten carbide blades for a sharper & longer lasting edge

For use on table mount and handheld router

Specs: Number of Cutters 2, Overall Dia. 1/2", Overall Length 2-1/8", Shank Dia. 1/4", Carbide Height 1"

Freud Tico Hi-Density Carbide

Clean cuts in solid wood, plywood and composites

【High Quality Blades】 Improved the blades with the C3 high-grade blades, sharper wood trimming.

【Hassle-free Replacement】 High-quality bearing, Smoother wood trimming and aligned clean cut.

【Home Workshop DIY Kit】 Professional for wood pieces copy, pattern and trim work, longer life.

1/4" shank top bearing flush trim router bit, cutting diameter: 1/4",5/16",3/8",1/2".

Industrial Grade Carbide Cutters, good quality for long service life.

Precision ground, creating smooth cutting surface.

KOWOOD Pro flush trim router bit is designed specifically for professional trimming work

This flush trim router bit features 20 individually brazed carbide tips in a compression design in order to eliminate chipping

Multi blade technology can effectively improve work efficiency and tool life

UP & DOWN cut spiral router bit with 1/4 inch shank and 1/4 inch cutting diameter, 1 inch cutting length, 2-1/2 inch for total length

SOLID CARBIDE AND NANO BLUE COATED: The up and down cut spiral router bit is made of solid carbide. And Nano Blue Coating with high hardness and heat resistance enables the tool's cutting edge to retain crucial sharpness and lubricity. This provides longevity and produces cutting results of the highest quality. Clean surface, neat, no glitches.

Spiral bits used for side milling, end milling, finish machining, etc. End Mill Bits can smoothly upcut and downcut groove and slots, mortises, cycles and dados with clean edge and bottom, better than straight bits.

Up cut spiral router bit with 1/2 inch shank and 1/2 inch cutting diameter, 2 inch cutting length, 4 inch for total length

PREMIUM QUALITY: The spiral upcut router bits Made of solid carbide (Tungsten steel), it is high-wearable and has a long life. You can decrease the times of changing cutters, save production time.

The CNC End Mill Router Bits apply to various wood: such as Plywood, OAK, MDF, and any hardwood working and Long service life for sharp. And also for carbon steel, soft alloy steel, tool steel, cast iron, aluminum alloy.

3/4-Inch Diameter, 4-5/16-Inch Overall Length

2 carbide cutting tips for long-lasting performance

Down shear design allows for clean smooth cuts on many materials

Specs: Number of Cutters 2, Overall Dia. 1/4", Overall Length 2-1/2", Shank Dia. 1/4", Carbide Height 1"

Chip free cuts on top surface of laminates and veneer panels

Use in CNC, hand-held and table-mounted routers

Solid Carbide spiral router bit with 1/4inch shank and 1/4inch cutting diameter, 1-1/4 inch cutting length, 3 inch for total length

The CNC End Mill For Plywood, OAK, MDF, and any hardwood working and Long service life for sharp

Spiral bits used for smoothly upcut groove and slots, Plunge Mortises, Cycles and dado with clean edge and bottom, better than straight bits

Specs: Number of Cutters 2, Overall Dia. 3/8", Overall Length 3", Shank Dia. 1/4", Carbide Height 1"

Perfect for siding, sheathing & paneling installation

Use on portable routers for template work

Professional Flush Trim Router Bit with Top Bearing: 1/4” Shank, 1” Cut Length. The two independent ball bearings with forced on steel collars at the tip of each bit ensures smooth worry free use.

INDUSTRIAL QUALITY UPCUT FLUSH TRIM ROUTER BIT: Made of solid VIRGIN carbide with NANO blue coated. And Nano Blue Coating with high hardness and heat resistance enables the tool's cutting edge to retain crucial sharpness and lubricity. This provides longevity and produces cutting results of the highest quality.

Up to 2.5X longer life compared to uncoated bits.

American standard, MNA Carbide. Provide superior wear resistance and sharp edges for the best finish.

MNA Plus pattern flush trim router bit set is an upgrade router kit designed for create smooth straight edge or make a duplicate part with template.The carbide is matching with the bearing at the shank. Those pattern bits making them handy for jigs where the template is below the workpiece.

MNA pattern flush-trimming bit featuring perfectly balanced for smoother cuts.

Made of high quality high speed steel for long life and exceptionally precise cuts the first time, saving you energy and stress

10pcs Router Bits including straight, trim, V groove, beading, cove, slot cutter and more to meet your different needs

Easy to use - large capacity chip groove, and spiral cutting edge sharp, greatly enhance the efficiency and quality of products

✔【PERFECT SIZE TRIM ROUTER BITS】- Its Shank: 1/4inch, Cut Length: 1inch,NOTE:When using, pay attention to the thickness of the board not to exceed 28mm

✔【INDUSTRIAL QUALITY ROUTER BITS】- The router bits is made of Solid Carbide(using the upgrade material), with C3 Micro-grain Tungsten Carbide Cutters. Industrial quality router bits provide precise, efficient cuts and offers extreme durability.

✔【DOWN-CUT SPIRAL ROUTER BITS】- The flush cut router bit redesigned with permanent bearing retaining collar to reduce trimming mishaps.

This Top Bearing Ultra-Perfomance Up Cut Flush Trim Router Bit is constructed from solid carbide and has a 1" cutting length and a 1/2" diameter with an overall length of 2-3/4" and a 1/4" shank.

Flush trim endgrain of any direction for a perfect finish

High performance C3 micro-grain solid carbide sleeve, polished to a mirror finish

【Quality Material】Made of high quality high speed steel for long life and exceptionally precise cuts the first time, has the advantages of high hardness, good wear resistance and heat resistance

【Great Design】It features large capacity chip groove, and spiral cutting edge sharp, greatly enhance the efficiency and quality of products

【COMPATIBILITY】  length: 38mm, 3mm (1/8") Shank HSS router bit fits most rotary tools including for DREMEL, Craftsman, Chicago and more

Professional Downcut Flush Trim Router Bit with Top Bearing: 1/4” Shank, 1” Cut Length. The two independent ball bearings with forced on steel collars at the tip of each bit ensures smooth worry free use.

INDUSTRIAL QUALITY DOWN-CUT FLUSH TRIM ROUTER BIT: Made of solid VIRGIN carbide with NANO blue coated. And Nano Blue Coating with high hardness and heat resistance enables the tool's cutting edge to retain crucial sharpness and lubricity. This provides longevity and produces cutting results of the highest quality.

Up to 2.5X longer life compared to uncoated bits.

【Extra Long Flush Trim Router Bit】Sinoprotools Trimming Router Bits,size in 1/2" Shank x 1/2" Cutting Diameter x 3" Cutting Depth.

【Excellent Cutting 】Flush Trim Bit used for precision work on trimming shelf edging, veneer or laminates with excellent finishing, or quick template work to make duplicate parts or joint an edge straight and smooth.

【Dependable Durability】Flush Cut Router Bits includes the ball bearing guide for easy template work. Featuring K10/YG6X micro-grain tungsten carbide blades for sharper, longer-lasting edges, making woodworking simpler and smoother.

Name: 1/4-Inch Diameter Spiral Flush Trim Router Bits.

Size: Cutting Diameter: 1/4",Cutting Length: 1-1/8",Shank 1/4",Overall Length: 3".

Material: Made of Solid Carbide, with C3 Micro-grain Tungsten Carbide Cutter, Industrial quality router bits provide precise, efficient cuts and offers extreme durability.

1.Material: carbide cutters

2.Size: Shank: approx. 1/4" ; Cutting diameter: approx. 3/8" ; Height: approx. 2".

3.Package: 1pc x Extra Long Flush Trim Router Bit

Downcut spiral router bit with 1/4 inch shank and 1/4 inch cutting diameter, 1 inch cutting length, 2-1/2 inch for total length

SOLID CARBIDE AND NANO BLUE COATED: The down-cut spiral router bit is made of solid carbide. And Nano Blue Coating with high hardness and heat resistance enables the tool's cutting edge to retain crucial sharpness and lubricity. This provides longevity and produces cutting results of the highest quality. Clean surface, neat, no glitches. Up to 2.5X longer life compared to uncoated bits.

CNC Spiral bits used for side milling, end milling, finish machining, etc. End Mill Bits can smoothly downcut groove and slots, mortises, cycles and dados with clean edge and top, better than straight bits.

Solid Carbide spiral router bit with 1/4inch shank and 1/4inch cutting diameter, 2 inch cutting length, 4 inch for total length, CNC Operating Spindle Speed 18000 RPM, Depth of Cut 1*Tool Diameter, Specifically designed for milling Polyurethane Foam and Expanded Polystyre, Recommendation use the slowest suggested feed rates and the shortest bits necessary.

The CNC end mill spiral bit excellent for cutting Acrylonitrile-Butadiene-Styrene (ABS), Ethylene-Vinyl Acetate Foam (EVA), Polvurethane Foam, Polyethylene Foam, Wood can be processed, but it is not strongly recommended. If used for processing wood, the depth of each processing should not exceed 1/4 inch. For example, when processing 1 inch deep wood, it is divided into 4-5 processing steps.

Spiral bits used for smoothly upcut groove and slots, Plunge Mortises, Cycles and dado with clean edge and bottom, better than straight bits, Provides deeper cuts and larger slices with fewer passes in thick materials resulting in improved productivity and less assembly.