Left hand spiral bits provide a shear cutting edge that leaves a smoother cut than standard router bits. The down cut spiral design provides the best top surface edges, ejecting ships away from the router when routing through material. This design also decreases the tendency to lift thin/small work pieces during CNC routing.

TOOL SPECS: Solid carbide, down cut, left hand spiral with 3/4″ cutting diameter, 3/4″ shank, 2″ cutting length, and 4″ overall length for use in routers with a 3/4″ collet.
LEFT HAND: Compatible with routers that feature dedicated left-hand rotation for precise and efficient cutting.
DOWN CUT SPIRAL: Down Cut Spirals ensure a clean edge on the side of the material closest to the router. Perfect for clean, top edges in handheld routing or CNC applications.
HELIX: Ideal for shallow grooves, dados, and inlays with a handheld router. The spiral helix offers a shearing action for clean, crisp cuts while outperforming standard straight bits.
STABILITY: Great for holding thin sheets or small pieces in place during CNC routing operations, ensuring precision and stability. Ejects chips away from the router when cutting through material.
MATERIALS: Performs best with hardwoods, softwoods, plywood, MDF, and hard plastics for versatile woodworking applications. Compatible with hand-held routers, table routers, and CNC machines.

Whiteside catalog page 5.

Part No.	LD7200
Series	Left Hand Down Cut Spiral
Description	Left Hand Down Cut Spiral, 3/4" Shank, 3/4" Dia, 2" CL, 4" OAL
Shank	3/4"
Cutting Diameter	3/4"
Cutting Length	2"
Overall Length	4"
Profile	Down Cut
Materials	Natural woods, composites, hard plastics, thin aluminum
Recommended RPM	12,000-14,000 (max 18,000)

Part No.	Shank	Cutting Diameter	Cutting Length	Overall Length	Profile	Price
LD1600	1/4"	1/8"	1/2"	2"	Down Cut	$33.44 Add to cart
LD1800	1/4"	3/16"	3/4"	2-1/2"	Down Cut	$33.44 Add to cart
LD2100	1/4"	1/4"	1"	2-1/2"	Down Cut	$31.61 Add to cart
LD3100	5/16"	5/16"	1"	3"	Down Cut	$58.62 Add to cart
LD4100	3/8"	3/8"	1"	3"	Down Cut	$63.72 Add to cart
LD5125	1/2"	1/2"	1-1/4"	3"	Down Cut	$85.11 Add to cart
LD5200	1/2"	1/2"	2"	4"	Down Cut	$114.30 Add to cart
LD6200	5/8"	5/8"	2"	4"	Down Cut	$265.14 Add to cart
LD7200	3/4"	3/4"	2"	4"	Down Cut	$212.84 Add to cart

Brand

Whiteside

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We work with CNC shops, industrial manufacturers, tool rooms, and production facilities to provide tool modifications that improve fit, function, performance, and efficiency. Whether you need a small adjustment or a more specialized cutting tool solution, our team can review your requirements and recommend the best option.

Custom tool modifications can help reduce setup time, improve accuracy, extend tool life, solve clearance issues, and support more consistent production results.

Common Tool Customization Options

Diameter and OD Modifications

We can modify tool diameters to better match your application requirements, including cutting diameter changes, OD modifications, pilot diameter adjustments, step diameters, and shank diameter modifications.

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Length Adjustments

Tools can be modified for specific reach, clearance, or setup needs. This may include overall length changes, flute length adjustments, reduced neck sections, extended reach designs, or shortened tools for improved rigidity.

Shank Modifications

Shank modifications can help ensure the tool fits properly in your holder, spindle, or machine setup. Common options include shank diameter changes, flats, Weldon flats, reduced shanks, and custom holding requirements.

Radius, Chamfer, and Corner Changes

We can customize corner radius, chamfer angles, edge breaks, and other profile details to meet part print requirements or improve cutting performance.

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Flute and Cutting Edge Adjustments

Depending on the tool and application, flute length, cutting edge geometry, end cutting features, relief angles, and cutting edge shape may be modified to improve chip evacuation, cutting action, and tool performance.

Regrinding and Resharpening

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Whiteside LD7200 Left Hand Down Cut Spiral, 3/4″ Shank, 3/4″ Dia, 2″ CL, 4″ OAL