RT690 – 4-Edge T-Slot Cutter Router Bit (8mm, 12mm & 1/2″ Shank)

$9.17

This 4-edge T-slot cutter router bit is designed for precise slotting and grooving. Fits 8mm, 12mm, and 1/2″ shank routers, delivering smooth cuts and durable performance.

SKU: RT690 Categories: ,

Heavy-duty 4-edge T-slot cutter router bit for woodworking. Available in 8mm, 12mm, and 1/2″ shanks, perfect for precision slotting, grooving, and joinery applications.

45° lock miter router bit front viewProfile and cutting geometryCarbide cutter detailAnti-kickback body designShank detail 1/2 inch (12.7 mm)Application example

Features

  • 100% brand new, high-quality, industrial-grade router bit.
  • Designed for hand-crafted drawers and general woodworking joinery.
  • Solid, hardened 45# steel body with anti-kickback design.
  • Heat- and build-up-resistant Teflon coating.
  • High hook & shear angles for smooth, splinter-free cuts.
  • YG6X micro-grain carbide cutters; CNC ground to ~600 grit, mirror-like finish.
  • Fully enclosed, permanently lubricated bearing.

Specifications

  • Item: 45° Lock Miter Router Bit
  • Shank Diameter: 12.7 mm (1/2″)
  • Body Material: 45# hardened steel
  • Carbide Grade: YG6X micro-grain cemented carbide
  • Balance/Precision: ±0.003″
  • Finish: CNC ground to ~600 grit, mirror-like
  • For detailed dimensions, please refer to the photos above.

Package Includes

1 pc × 45° Lock Miter Router Bit (1/2″ shank)

Note

  • Please allow a 1–3 mm difference due to manual measurement.
  • Colors may vary slightly due to display and lighting conditions.

Reference: Common Machine Speeds

Laminate trimmer 10,000–30,000 rpm Handheld router Gears: ~9,000 / 12,000 / 15,000 / 19,000 / 23,000 rpm
Table-mounted (vertical) router Low ~12,000 rpm / High ~24,000 rpm CNC engraving/router VFD up to ~18,000 rpm

Reference: Diameter vs. Max Speed / Feed

Diameter or Cutting Height (mm) Max Speed (rpm) Max Feed (mm/min)
≤ 25 24,000 5,000
25.1–35 18,000 4,000
35.1–50 16,000 3,500
50.1–60 14,000 3,000
60.1–80 12,000 2,500
> 80 10,000 2,000
shank size

12mm shank, 1/2" shank, 8mm shank

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