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Cylindrical 3.90 mm drill bit with double margin flutes and gold coating

M.A. Ford

M.A. Ford CXDSR 0390AP Cyclone Xd 5X Double Margin Drill 3.90 mm

SKU CH-KPMV-BWPMZ

A 3.90 mm solid double-margin drill designed for 5X diameter drilling depth

  • Precision drilling with 5x diameter depth capability
  • Double margin design improves hole straightness and finish
  • Solid carbide construction for extended tool life
  • 90 mm diameter suits specific machining requirements
  • Cyclone Xd series engineered for high-performance applications

Drill Diameter 3.90 mm

The M.A. Ford CXDSR 0390AP Cyclone Xd is a solid double-margin drill with a 3.90 mm cutting diameter. It belongs to the Power & Pneumatic Accessories category and is supplied new. The tool is designed for precision hole-making in suitable workpiece materials.

Proposition 65 Chemical Notice

This product contains a chemical known to the State of California to cause cancer and birth defects or other reproductive harm. Users should follow standard workshop safety practices including ventilation and personal protective equipment. The notice applies to the drill as supplied by the manufacturer.

Direct Manufacturer Shipment

The item ships directly from the manufacturer with free shipping included. No additional accessories or software are bundled with the drill. The delivery method reduces handling steps between the factory and the end user.

How it compares

Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.

Price $71.99
Pricier than about 76% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameM.A. FORD

Questions about this item

How is the 3.90 mm Cyclone Xd drill installed in a drill press or handheld chuck, and what step is often missed?

Insert the cylindrical shank fully into the chuck jaws, tighten evenly on all three jaws, and verify concentricity with a dial indicator before starting — skipping the run-out check is the common error.

What maintenance or replacement will the CXDSR 0390AP double-margin drill need over time?

The solid-carbide cutting edges will dull; plan on professional regrinding or full replacement once flank wear reaches the margin width, as the double-margin geometry cannot be restored by hand.

What limit appears first during sustained drilling with this 3.90 mm tool?

Heat buildup at the cutting lips typically limits continuous feed rates before chip evacuation becomes critical, especially in deep-hole passes beyond five diameters.

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