Whiteside 13-1250 Helix Mortise Bit w/ Downshear - 1 1/4″ CD

$48.66 $57.25

SKU: 13-1250 Whiteside Machine Company

Only 5 left!

Materials: Natural woods, composite woods, hard plastics

Recommended RPM: 12,000-14,000 (max 24,000)

These Mortise heads are designed to screw down onto a Helix Mortise Arbor (Part #HMA-1/4 or #HMA-1/2) for easy transition from one cutting head to the next. The Mortise head is only available with a downshear cutter.

  • TOOL SPECS: Carbide-tipped, screw type helix mortise bit with 1-1/4" cutting diameter, 1/2" cutting length, 1/4"-28 threads, and 1/2" overall length.
  • DESIGN: Easily screws onto a helix mortise arbor for a smooth transition between heads, streamlining your workflow for efficient and hassle-free use. Requires a 1/4"-28 thread arbor.
  • MORTISE: Perfect for cutting clean, square-bottom mortises for hinges, locksets, and other joinery, delivering a precise rectangular recess for various woodworking applications.
  • DOWNSHEAR: The short downshear flute finishes the top edge within the mortise, providing a clean, precise cut for a professional finish.
  • CARBIDE TIPPED: Offers an excellent balance of quality and cost, making it ideal for a wide range of applications.
  • DISTINCT PROFILES: Designed for hand-held routers, router tables, and CNC machines in a wide variety of applications.

Availability: In stock at our supplier — typically ships in 3–7 business days. Contact us to confirm lead time on larger quantities.

Feeds & Speeds
Based on published chip-load charts at 18,000 RPM. Full calculator →