CMT Solid Carbide Upcut Ball Nose Spiral Bit - 3/4 in. is a precision-ground, two-flute routing tool engineered for CNC 3D profiling, sculpting, relief carving, and curved surface machining. Built from a special super-micrograin carbide formulation that produces and holds a keen cutting edge, this bit delivers the sharpness and edge retention demanded by high-detail work in solid wood, wood composites, plastic materials, and laminates. The right-hand upcut spiral design shears wood cleanly and ejects chips efficiently, keeping the tool running cooler and extending edge life across demanding production and hobbyist applications alike.

Key Features

• Super-Micrograin Solid Carbide Construction - a special super-micrograin carbide formulation was created to produce and hold a keen cutting edge, delivering superior wear resistance and the ability to maintain precision geometry through extended use on hardwoods, softwoods, composites, plastics, and laminates.
• Low-Angle Upcut Spiral Design - the new low-angle spiral is designed specifically to shear wood cleanly and provide efficient chip ejection, so the tool runs cooler and the cutting edges last longer, reducing downtime and regrinding frequency.
• Ball Nose Profile with 3/8 in. Radius - the spherical tip creates smooth, continuous curved surfaces ideal for 3D sculpting, relief carving, and contoured profile machining without flat spots or transition lines.
• 3/4 in. Diameter with 2 1/4 in. Cutting Height - the generous cutting length allows deep passes in thick stock, making panel sizing, copying, and full-depth 3D routing passes possible in a single setup.
• 3/4 in. Shank - a full 3/4 in. shank provides a rigid, secure tool holder connection that minimizes vibration and deflection during high-feed-rate CNC routing operations.
• Two-Flute Geometry - dual cutting edges balance material removal rate with surface finish quality, producing smooth results on curved and contoured surfaces where single-flute bits may leave visible toolpath marks.
• Right-Hand Rotation - standard RH rotation ensures compatibility with the vast majority of CNC routers, router tables, and handheld routers without requiring a spindle change.

Why This Product

• For woodworkers and CNC operators who need clean 3D curved surfaces without excessive sanding, the low-angle upcut spiral shears material rather than tearing it, reducing surface preparation time after machining.
• The super-micrograin carbide formulation holds a keen edge longer than standard carbide, making this bit a cost-effective choice for production environments where frequent bit changes slow throughput on solid wood and composite routing jobs.
• With a 2 1/4 in. cutting height and 3/8 in. radius ball nose, this bit handles deep relief carving and full 3D profile passes in a single tool, eliminating the need to swap bits mid-project for copying, panel sizing, or sculptural routing work.
• Solid carbide construction throughout - not carbide-tipped - means the entire tool body can withstand the rigors of cutting plastic materials, laminates, and dense wood composites where carbide-tipped alternatives may chip or deflect under lateral load.

Specifications

• Manufacturer Part Number: 199.511.11
• Brand: CMT Orange Tools
• Product Type: Solid Carbide Upcut Ball Nose Spiral Bit
• Diameter: 3/4 in.
• Cutting Height: 2 1/4 in.
• Total Length: 4 5/16 in.
• Radius: 3/8 in.
• Shank: 3/4 in.
• Number of Teeth: 2
• Material: Solid Carbide (HWM)
• Rotation: Right-Hand (RH)

Approved Applications

• CNC 3D Routing and Profile Machining
• Curved Surface Machining
• Sculpting and Relief Carving
• Cutting and Copying
• Panel Sizing
• Routing on Solid Wood and Wood Composites
• Plastic Materials and Laminates Routing