Drill Master - Eldorado Tool Inc.

Phone: 203-878-1711
Toll-Free: 800-658-8855
Fax: 203-878-6156

Please visit: Drill Master - Eldorado Tool Inc.

Mailing Address:
336 Boston Post Rd.
Milford, CT 06460 US

A Special Message from Drill Master - Eldorado Tool Inc.


Gundrills to fit all of your hole making needs
Gundrills to fit all of your hole making needs

• Straightness tolerances of .001” (.025mm) per foot • Concentricity tolerances of .001” (.025mm) per inch or better • Hole diameter tolerances of +/- .0005” (.0127mm) • Finish tolerances as low as 4 Ra • Burr free intersections • Consistent reproduction from hole to hole

Universal Bench Top Gundrill Package
Universal Bench Top Gundrill Package

DME Universal Bench Top Grinding Unit When shop foot prints make it difficult to place a tool and cutter grinder at a work station or to maximize the efficiency of an operator, our Bench Top Grinder can be set inside any work station and gundrills can be easily re-ground by the operator while a part is being drilled. Or if your tool room space is being maximized this unit can be placed on any sturdy bench and our model “B” fixture can remain permanently mounted and ready to use at a moments notice without any set-up time thus increasing efficiency. The Bench Top Unit can be purchased separately or as a complete package with the grinding unit, sharpening fixture, diamond wheel and collet.

Single Flute - (Solid Carbide) Single flute solid carbide gundrills are constructed of a single piece of carbide with no braze joint at the head and tube transition. Solid carbide gundrills will yield greater tool life, more strength, rigidly, 2-3 times faster feed rates, and maximize your productivity. Due to its rigidity this tool enables much faster SFM without the whip factor therefore enabling increased feed rates. Stock diameters are available from .055” (1.397mm) to .070” (1.778mm) in lengths to 6.0” (152.4mm) Special diameters and lengths are available from .039” (1.0mm) - .1875” (4.762mm) in lengths up to 10” (254mm). Delivery is 2-3 weeks depending on carbide availability.

Product Categories of Drill Master - Eldorado Tool Inc.

  • Boring Machines
  • Collets for Toolholding
  • Coolants, Cutting Fluids & Oils
  • Drill Bushings
  • Drilling & Tapping Machines, CNC
  • Drilling & Tapping Units, Fixtured
  • Drilling Attachments
  • Drilling Heads/Attachments
  • Drilling Machines, Bench & Column
  • Drilling Machines, Deep Hole (Gundrilling)
  • Drilling Machines, Multi-Spindle
  • Drills
  • Grinding Attachments & Accessories
  • Grinding Machines, Universal (ID/OD)
  • Grinding Wheels & Belts
  • Gundrills
  • Horizontal Machining Centers, Five-Axis
  • Horizontal Machining Centers, Up to Four-Axis
  • Lathes, Manual
  • Oil Filtration & Treatment
  • Reamers
  • Tool Bushings & Adaptors Attachments

Trade Names

  • Gundrill Bushings
  • Gundrilling
  • Gundrills
  • Solid Carbide

Product Announcements Provided By Drill Master - Eldorado Tool Inc.

Gundrilling on CNC Machining Centers

Proper Gundrill Selection

Solid Carbide Single Flute Gundrills

Types of Coolants

As seen in MMS

Advancing Manufacturing, Tomorrow and Today
A drilling solution improves the production of a component that is critical for correcting spinal disorders. Meanwhile, an apprenticeship program ensures that improvements like this one can continue into the future.