Description
The Keep-Nut® 12mm End Mill CNC Bit is engineered for precise, efficient hole preparation when installing Keep-Nut® press-in self-anchoring inserts in solid surface materials, plastics, and composites. Designed for use with CNC routers or drill presses, this two-flute, square-end cutting tool produces flat-bottom blind holes in a single pass—reducing machine time and ensuring consistent, repeatable anchor installations.
Key Features & Benefits
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Exact 12mm Diameter – Matches Keep-Nut® anchor hole specifications for reliable press-fit performance.
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Two-Flute, Square-End Geometry – Creates clean, flat-bottom blind holes without secondary finishing.
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Efficient CNC Performance – Cuts precise anchor pockets in one pass, saving machining time.
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Material-Specific Design – Optimized for Corian®, engineered solid surface, plastics, and decorative composites.
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Durable Micrograin Solid Carbide – Provides long tool life and repeatable results in production settings.
Technical Specifications
| Property | Specification |
|---|---|
| Part Number | 90137 |
| Diameter (Cutting/Shank) | 12 mm |
| Length of Cut | 31 mm |
| Overall Length | 75 mm |
| Flutes | 2 (Square End) |
| Tool Type | CNC/Drill Press End Mill |
| Pack Quantity | Sold Individually |
| Compatible Anchors | Keep-Nut® 12 mm press-in inserts |
Keep-Nut® CNC Set-Up Info
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Hole Diameter: 12 mm (+/- 0.2 mm)
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Bit Diameter: 12 mm
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Depth: Match insert height so anchors sit flush with the surface when installed
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Example: H6 = 6.5 mm | H8.5 = 8.5 mm | H15 = 15.5 mm
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Anchor Placement: Approximately 2″ from sink cut-out on center or edge of material
Applications
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CNC drilling for undermount sink brackets in solid surface countertops
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Fabrication of plastic panels and decorative composites requiring concealed fastening
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Automated drilling for production shops seeking speed and repeatability
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Any installation where Keep-Nut® anchors require clean, flat-bottom blind holes
Installation Tips
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Use with a CNC router or drill press for best results.
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Verify hole diameter and depth with the Keep-Nut® Go/No-Go Gauge.
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Maintain proper feed and speed to extend tool life.
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Complete anchor installation with the Keep-Nut® Setting Tool to seat anchors flush.
Patent
Protected under U.S. Patent No. 10,473,141 (the ’141 Patent).
Order Now
Upgrade your fabrication efficiency with the Keep-Nut® 12mm End Mill CNC Bit.
Call 800-220-1966 or order online for immediate availability.
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