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Silver metal twist drill bit with double margin flutes, 6.90 mm diameter

M.A. Ford

M.A. Ford 6.90 mm Cyclone Xd 3X Solid Double Margin Drill

SKU CH-19K7-GXBFS

6.90 mm solid carbide drill with double margins for accurate holes up to 3× diameter

  • Solid double-margin design improves hole accuracy
  • Cyclone Xd coating extends tool life in tough materials
  • 3× diameter drilling depth reduces tool changes
  • 90 mm diameter suits precise metric applications
  • California Proposition 65 warning informs safe handling

6.90 mm Solid Double Margin Drill

This 6.90 mm Cyclone Xd drill is a solid double margin cutting tool built for power and pneumatic applications. It targets machinists and maintenance teams who need precise hole-making in demanding materials. The 3X geometry supports aggressive feed rates while maintaining hole straightness and surface finish. It arrives new and ships directly from the manufacturer.

Upgrade from standard twist drills

Conventional twist drills often wander or deflect in deep or tough cuts, requiring frequent pecking or rework. This drill replaces them when hole accuracy and tool life are critical, especially in stainless steels, titanium alloys and high-temperature alloys. The jump is worth it when scrap costs or cycle times outweigh the higher unit price of a premium solid carbide tool.

Suited for high-precision CNC work

Shops running rigid CNC machines with through-spindle coolant will gain the most from the double margin design and 3X flute length. It is not suited for hand-held drilling, low-rigidity setups or jobs where flood coolant is the only option. Buyers who need larger diameters, longer reach or indexable inserts should look at other ranges.

How it compares

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

Price $111.99
Pricier than about 85% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameM.A. FORD

Questions about this item

What shank diameter does the 6.90 mm Cyclone Xd drill require in the chuck?

The drill has a 6.90 mm cutting diameter and a matching shank, so use a collet or chuck that grips 6.90 mm precisely.

What is the correct way to clamp this solid double-margin drill to avoid runout?

Seat the shank fully in a clean, matched 6.90 mm collet, tighten evenly, and verify concentricity before starting; the double-margin design amplifies any eccentricity.

How often should the double margins be inspected and the drill resharpened?

Check the margins after every job for wear or chipping; resharpen when corner breakdown is visible or thrust force increases noticeably.

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