A close-up studio photograph on a plain white background of the Freud 75-025 solid carbide O-flute up spiral router bit, showing its single cutting edge designed for CNC plastics.
An close-up view focusing on the specialized geometry of the single O-flute upward spiral cutting edge of the Freud 75-025 solid carbide router bit for cool cutting in acrylic.
A detailed perspective shot of the spiral cutting edge and the point of the solid carbide O-flute up spiral bit, illustrating the precision engineering for CNC plastic fabrication.
Close-up side view of the sharp cutting edge and spiral geometry of a Freud solid carbide O-flute bit designed for acrylic and ABS.
Macro view of the top of the router bit highlighting the up-spiral cutting action and high-speed steel finish for clean chip removal in plastics.
Extreme close-up of the O-flute tip showing the mirror-polished finish and precision ground cutting edge for cool-cutting performance.
Technical profile diagram for Freud 75-025 showing a straight vertical cut with a designated 7/8 inch cutting height capacity.
Material compatibility chart for the Freud up spiral router bit indicating optimal use for solid surface materials and various plastics.
Tool compatibility infographic showing the Freud 75-025 is suitable for use with hand routers, table routers, CNC machines, and palm routers.
A close-up studio photograph on a plain white background of the Freud 75-025 solid carbide O-flute up spiral router bit, showing its single cutting edge designed for CNC plastics.
Foam and Polycarbonate: Your CNC Guide from Freud Tools promotional how to video
A close-up studio photograph on a plain white background of the Freud 75-025 solid carbide O-flute up spiral router bit, showing its single cutting edge designed for CNC plastics.
An close-up view focusing on the specialized geometry of the single O-flute upward spiral cutting edge of the Freud 75-025 solid carbide router bit for cool cutting in acrylic.
A detailed perspective shot of the spiral cutting edge and the point of the solid carbide O-flute up spiral bit, illustrating the precision engineering for CNC plastic fabrication.
Close-up side view of the sharp cutting edge and spiral geometry of a Freud solid carbide O-flute bit designed for acrylic and ABS.
Macro view of the top of the router bit highlighting the up-spiral cutting action and high-speed steel finish for clean chip removal in plastics.
Extreme close-up of the O-flute tip showing the mirror-polished finish and precision ground cutting edge for cool-cutting performance.
Technical profile diagram for Freud 75-025 showing a straight vertical cut with a designated 7/8 inch cutting height capacity.
Material compatibility chart for the Freud up spiral router bit indicating optimal use for solid surface materials and various plastics.
Tool compatibility infographic showing the Freud 75-025 is suitable for use with hand routers, table routers, CNC machines, and palm routers.
A close-up studio photograph on a plain white background of the Freud 75-025 solid carbide O-flute up spiral router bit, showing its single cutting edge designed for CNC plastics.
Foam and Polycarbonate: Your CNC Guide from Freud Tools promotional how to video
Freud

Freud Router Bit 75-025 1/4 Inch (O Flute Up Spiral Solid Carbide 7/8 Inch Cut Height Acrylic ABS Plastic CNC Machining 24000 RPM 1/4 Inch Shank)

Only 3 left
SKU: 75-025
$49.47 USD

Description

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Freud 75-025 1/4-Inch O-Flute Up-Spiral Solid Carbide Router Bit

The Freud 75-025 1/4-Inch O-Flute Up-Spiral Solid Carbide Router Bit is an industrial plastic-cutting CNC tool engineered to machine acrylics, ABS, UHMW, nylon, and polycarbonate without material melting or surface gumming. Operating at spindle speeds up to 24,000 RPM with a 1/4-inch shank, 1/4-inch cutting diameter, 7/8-inch carbide height, and 2-1/2-inch overall length, this single-flute solid carbide bit features a mirror-ground O-flute profile. Designed for high-speed CNC machining centers and handheld plunge routers, this upward-ejecting spiral cutter solves chip re-cutting, thermal deformation, and edge-clouding challenges in commercial plastic display and signage fabrication.

Best Used For:

  • Acrylic & Polycarbonate Signage Machining: Routing optically clear through-cuts and letter profiles in cast acrylic, plexiglass, and polycarbonate sheets.
  • Industrial Thermoplastic Component Milling: Slotting and pocketing high-density UHMW, nylon, ABS, and PVC polymer parts without edge welding.
  • CNC Bottom-Surface Finishing: Executing chip-free, smooth bottom-edge cuts on multi-layer plastic and solid surface composite fabrications.

Key Performance & Safety Features

  • Cool-Cutting O-Flute Geometry: Mirror-polished single-flute geometry dissipates frictional heat rapidly to prevent soft thermoplastics from melting during high-speed feed rates.
  • Up-Spiral Chip Evacuation: Aggressive upward shearing action ejects plastic swarf away from the cut path to eliminate chip re-cutting and bit clogging.
  • Freud Premier Solid Carbide Construction: Ultra-fine micrograin carbide formulation delivers extended sharpness retention and structural rigidity in abrasive synthetic solids.
  • 7/8-Inch Extended Cutting Height: Generous 7/8-inch carbide flute height accommodates thick plastic sheet stock and deep single-pass slotting.
  • Universal Router System Compatibility: Precision-ground 1/4-inch shank integrates smoothly into CNC spindles, router tables, and handheld routing collets.

What's Included

  • (1) Freud 75-025 1/4 in. O-Flute Up-Spiral Solid Carbide Router Bit (1/4 in. Shank)

Technical Specifications

Manufacturer Brand Freud Tools
Model Part Number (OEM) 75-025
Overall Cutting Diameter (D) 1/4 in. (6.35 mm)
Shank Interface Diameter (A) 1/4 in. (6.35 mm) Round Shank
Carbide Cutting Height (h) 7/8 in. (22.23 mm)
Total Overall Bit Length (H) 2-1/2 in. (63.5 mm)
Flute Configuration Profile O-Flute Up-Spiral (1 Flute)
Primary Tool Material Freud Premier Solid Carbide
Maximum Rotational Speed 24,000 RPM
Power Tool System Compatibility CNC Routers, Handheld Routers, Router Tables
Primary Target Substrates Acrylic, ABS, UHMW, Nylon, Polycarbonate, Solid Surface
Pro-Tip: Set your CNC feed rate slightly faster when cutting acrylics with an O-flute bit to allow larger chips to carry heat away from the cut zone and keep edge faces melt-free.