Willamette Valley Rocks

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8" Diamond Combination Unit w/ Power Feed

8 inch diamond combination machine with 10 inch trim saw and power feed 447ddp


Freight Item! Will Ship by Common Freight Carrier!

  • Five Work Stations
  • Adjustable Cab and Wheel Rest
  • 1/3 HP, Heavy Duty, High Torque Motor
  • Levermatic Speed Control with 8 RPM Changes
  • Powder Coated Aluminum Castings, Hood & Belt Guard
  • Two Drive Motors, One for the Saw and one for the Grinder
  • This item Ships by Common Freight Carrier

Enjoy the convenience of finishing gemstone material on one machine with Covington's 8" Deluxe Combination Unit. Two motors drive the 10" trim saw and grinding station separately. The Deluxe Diamond Unit comes complete with levermatic speed control, two (2) 8" x 1-1/2" metal bonded diamond grinding wheels (100g & 220g), one (1) 8" lever lock drum with silicon carbide sand cloth (400g), one (1) 8" x 1"-14RH aluminum head with diamond disc attached (1200g), one (1) 8" x 1"-14RH aluminum head with leather disc attached, 5-gram syringe of 50,000 mesh diamond compound, 2-ounce bottle of extender fluid, a book about using diamond abrasives, sample kit (#1 Koolerant, polish powder, brush, dop sticks, and wax), instructions, and product guarantee. A 1/3hp motor drives the saw and a 1/3hp high-torque motor drives the grinding unit.

The hood removes easily for cleaning or wheel changes. The water valve takes 1/4" OD plastic tubing for gravity water flow or 1/4" copper tubing for a pressure system. Spray nozzles under the hood wet the entire wheel face. The 10" trim saw features a Covington Gold Series diamond blade.This unit ships fully assembled and mounted on an aluminum-topped Lam-I-Cushion base. A cabinet stand is available and is sold and shipped separately.


Model #447ddc -      Shipping Weight 160 lbs by Freight Carrier             $2,340.00



8" Silicon Carbide Combination Unit w/ Power Feed

8 inch Silicon Carbide Combination machine with 10 inch trim saw and Power Feed 446dsp

Freight Item! Will Ship by Common Freight Carrier!

  • Five Work Stations
  • Adjustable Cab and Wheel Rest
  • 1/3 HP, Heavy Duty, High Torque Motor
  • Levermatic Speed Control with 8 RPM Changes
  • Powder Coated Aluminum Castings, Hood & Belt Guard
  • Two Drive Motors, One for the Saw and one for the Grinder
  • This item Ships by Common Freight Carrier

Enjoy the convenience of finishing gemstone material on one machine with Covington's 8" Deluxe Combination Unit. Two motors drive the 10" trim saw and grinding station separately. The Deluxe Silicon Carbide Unit is a lower cost option that comes complete with levermatic speed control, two (2) 8 x 1-1/2" silicon carbide grinding wheels (100g & 220g), one (1) 8" lever lock drum with silicon carbide sand cloth (400g), one (1) 8" muslin buff, one (1) 8" x 1"-14RH aluminum head with leather disc attached, sample kit (#1 Koolerant, polish powder, brush, dop sticks, and wax), instructions, and product guarantee.

A 1/3hp motor drives the saw and a 1/3hp high-torque motor drives the grinding unit. The hood removes easily for cleaning or wheel changes. The water valve takes 1/4" OD plastic tubing for gravity water flow or 1/4" copper tubing for a pressure system. Spray nozzles under the hood wet the entire wheel face. The 10" trim saw features a Covington Gold Series diamond blade. This unit ships fully assembled and mounted on an aluminum-topped Lam-I-Cushion base. A cabinet stand is available and is sold and shipped separately.



Model #446dsc -      Shipping Weight 160 lbs by Freight Carrier      $2,160.00



6" Diamond Combination Unit

6 inch Diamond Combination Unit 495dcu

  • Sealed Ball Bearings Mounted in Rubber for Quiet & Smooth Operation
  • Mounted on Rustproof Aluminum-Topped Lam-I-Cushion Base
  • Stainless Steel Main Shaft Resists Rust
  • Continuous Variable Speed Control from 800RPM to 1725 RPM
  • Powder Coated Aluminum Castings, Hood & Belt Guard
  • Quick Change Hood & Polishing Buff
  • Adjustable Cab & Wheel Rest

The 6" Combination Unit saws, grinds, sands, and polishes gemstone material all on one machine. This unit is designed to take small work pieces from a rough stone to a polished finish. The 6" Diamond Unit comes complete with one (1) 6" Covington Gold Series diamond blade, slab vise, water valves, drains, two (2) 6" x 1-1/2" metal bonded diamond grinding wheels (100g & 220g), one (1) 6" expandable drum, one (1) 2-1/2" x 18-15/16" diamond sanding belt (1200g), five (5) 2-1/2" x 18-15/16" silicon carbide sanding belts (400g), one (1) 6" x 5/8"-18RH aluminum head with leather disc attached, 5-gram syringe of 50,000 mesh diamond compound, 2-ounce bottle of extender fluid, sample kit (#1 Koolerant, polish powder, brush, dop sticks, and wax), a book about using diamond abrasives, 1/3hp motor, switch cord, belt guard, instructions, and product guarantee.



Model #495dcu -      Shipping Weight 76 lbs by FedEx      $1,351.00



6" Silicon Carbide Combination Unit

6 inch Silicon Carbide Combination Unit 494scu

  • Sealed Ball Bearings Mounted in Rubber for Quiet & Smooth Operation
  • Mounted on Rustproof Aluminum-Topped Lam-I-Cushion Base
  • Stainless Steel Main Shaft Resists Rust
  • Continuous Variable Speed Control from 800RPM to 1725 RPM
  • Powder Coated Aluminum Castings, Hood & Belt Guard
  • Quick Change Hood & Polishing Buff
  • Adjustable Cab & Wheel Rest

The 6" Combination Unit saws, grinds, sands, and polishes gemstone material all on one machine. This unit is designed to take small work pieces from a rough stone to a polished finish. The 6" Silicon Carbide Unit is a lower cost option that comes complete with one (1) 6" Covington Gold Series diamond blade, slab vise, water valves, drains, two (2) 6" x 1" silicon carbide grinding wheels (100g & 220g), one (1) 6" expandable drum, one (1) 6" x 5/8"-18RH aluminum head with leather disc attached, 1/3hp motor, switch cord, belt guard, sample kit (#1 Koolerant, polish powder, brush, dop sticks, and wax), instructions, and product guarantee.



Model #494scu -      Shipping Weight 76 lbs by FedEx      $1,216.00