RAY FOSTER - F031 High-Speed Automatic Spindle for AG03 & AG05 Alloy Grinders (also fits Demco, Whip Mix, CF Price as replacement/upgrade)

RAY FOSTER - F031 High-Speed Automatic Spindle for AG03 & AG05 Alloy Grinders (also fits Demco, Whip Mix, CF Price as replacement/upgrade)
SKU: 101704 - Ordered from Manufacturer | ETD 3 DAYS
$679.00
$630.50
You save: $48.50 ( 7% )
Quantity:

Minimum quantity is 1.

Manufacturer #
F031
Manufacturer
Model
High-Speed Automatic Spindle
SubModel
Foster F031 (current AG03/AG05)
Style
OEM Ray Foster (Made in USA since 1938)
Colors
Polished Steel
Features
Fits Ray Foster AG03 & AG05 (als
Features
Quick-Change Clutch — single-handle tool change without stopping motor
Features
Compatible with Foster F106 collet set
Package
Unit
ETD
3 DAYS
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Description

RAY FOSTER
RAY FOSTER · Grinder Polishers units · Automatic spindles · OEM RAY FOSTER
Ray Foster F031 High-Speed Automatic Spindle for AG03 and AG05 Alloy Grinders (also fits Demco, Whip Mix, CF Price as replacement/upgrade)

RAY FOSTER F031 High-Speed Automatic Spindle For AG03 & AG05 Alloy Grinders (also fits Demco, Whip Mix, CF Price as replacement/upgrade)

SKU 101704 · RAY FOSTER · Polished Steel · Unit

Description

The F031 High-Speed Automatic Spindle For AG03 & AG05 Alloy Grinders (also fits Demco, Whip Mix, CF Price as replacement/upgrade) is a genuine RAY FOSTER product, supplied Unit. Stocked and shipped by US Dental Depot from our own facility in Boca Raton, FL.

From the Manufacturer

Model F031High-Speed Automatic Spindle For AG03 / AG05 OEM FOSTER spindle — direct fit For current-production AG03 & AG05, plus replacement upgrade For Demco, Whip Mix, CF Price RAY FOSTER Dental Equipment has manufactured precision dental laboratory products in Southern California since 1938 .

The FOSTER precision High-Speed Automatic Spindle is the original mechanism — designed For heavy-duty continuous operation, quiet and smooth running, with a clutch handle that disengages the tool, stops rotation, and opens the collet in one motion. Change tools in seconds without stopping the motor. The F031 is the current-production FOSTER Automatic spindle For the AG03 and AG05 alloy grinders.

Key Features Designed For heavy-duty continuous operation Quiet and smooth-running precision-machined spindle Quick-change clutch mechanism — tool change in seconds, motor running Single-handle action: disengages clutch, stops rotation, opens collet Easy disassembly For on-site self-repair High-speed operation Direct fit: RAY FOSTER AG03 and AG05 Replacement/upgrade fit: Demco, Whip Mix, CF Price grinders Manufactured in the United States since 1938 Key Selling Points The original FOSTER Automatic spindle — the design every other grinder brand copies Same-day tool changes save minutes per case across daily caseload Field-serviceable — technicians can disassemble and replace internal parts Duty Rating Heavy-duty continuous operation Direct Fit RAY FOSTER AG03, AG05 Replacement/Upgrade Fit Demco, Whip Mix, CF Price grinders Compatible Collets RAY FOSTER F106 collet set Country of Manufacture United States of America What's in the Box 1 × RAY FOSTER F031 High-Speed Automatic Spindle Manufacturer instructions Manufacturer Warranty All RAY FOSTER products carry the manufacturer's warranty against defects in materials and workmanship.

Specifications

ModelHigh-Speed Automatic Spindle
Sub-modelFOSTER F031 (current AG03/AG05)
StyleOEM RAY FOSTER (Made in USA since 1938)
ColourPolished Steel
FeatureFits RAY FOSTER AG03 & AG05 (als
DetailCompatible with FOSTER F106 collet set
PackUnit
CategoryGrinder Polishers units · Automatic spindles · OEM RAY FOSTER
USDD SKU101704
BrandRAY FOSTER

What You Get

  • Supplied as: Unit
  • Genuine RAY FOSTER product
  • Stocked and shipped from the US Dental Depot facility in Boca Raton, FL

Works With

  • The specific model this part is listed For
  • Confirm your model number before ordering — parts are model-specific
  • Send us the model and we will verify the part

Why You’ll Love It

  • Genuine RAY FOSTER. Never a look-alike or re-labelled substitute.
  • We verify the match before you buy. Send us what you currently use.
  • Shipped from Florida with US-based support.

If You Are Looking For

  • A different size, shade or pack in this range — ask us
  • The matching RAY FOSTER products For the rest of the procedure — ask us
  • A lower-cost equivalent — ask us what we stock in the value tier
  • Bulk pricing if you use this in volume — ask us

How It Compares

OptionTierPositioningAvailability
RAY FOSTER (this listing)BrandedManufacturer-specified productStocked at USDD
USDD House Brand / value linesValue tierLower cost per unitStocked at USDD — ask For the equivalent
Other branded alternativesPremium tierComparable products from other makersAsk us and we will quote the equivalent

Replacement parts are model-specific — send us your model number and we will confirm the correct part before you order. Tier and positioning only — no performance figures are claimed For any brand. Tell us what you use now and we will match it honestly.

Need Help Choosing?

Tell us what you currently use and we will confirm the match before anything ships. Call 954-874-6325 or email support@usdentaldepot.com.

Documentation

Technical data sheets and instructions For use are available from us on request — call 954-874-6325 or email support@usdentaldepot.com.

AUTHORIZED DISTRIBUTORUS Dental Depot is an Authorized RAY FOSTER Distributor

Every RAY FOSTER product we sell is a genuine, factory-fresh product, sourced through authorized channels and shipped from our US facility in Boca Raton, FL — with full US-based support.

Warranty & Guarantee

RAY FOSTER warrants this product to be free from defects in materials and manufacture. Any product found defective is replaced per the manufacturer’s policy. As an authorized distributor, US Dental Depot facilitates replacement directly with the manufacturer.

This is a consumable / wear item whose service life depends on use conditions, so no fixed service period is claimed.

Warranty terms are set and administered by RAY FOSTER

Product description last updated: July 27, 2026

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RAY FOSTER - F031 High-Speed Automatic Spindle for AG03 & AG05 Alloy Grinders (also fits Demco, Whip Mix, CF Price as replacement/upgrade)

RAY FOSTER - F031 High-Speed Automatic Spindle for AG03 & AG05 Alloy Grinders (also fits Demco, Whip Mix, CF Price as replacement/upgrade)

Model
High-Speed Automatic Spindle
Feature
Fits Ray Foster AG03 & AG05 (als
Package
Unit
$679.00
$630.50
Manufacturer #
F031
Manufacturer
SubModel
Foster F031 (current AG03/AG05)
Style
OEM Ray Foster (Made in USA since 1938)
Colors
Polished Steel
Feature
Quick-Change Clutch — single-handle tool change without stopping motor
Feature
Compatible with Foster F106 collet set
ETD
3 DAYS
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Model
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Feature
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Package
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Manufacturer #
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Manufacturer
SubModel
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Style
OEM Ray Foster (Made in USA since 1938)
Colors
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Feature
Quick-Change Clutch — single-handle tool change without stopping motor
Feature
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RAY FOSTER - F035 High-Speed Automatic Spindle for Demco E-96 and Demco B-1 (mounting tubes included for B-1)

RAY FOSTER - F035 High-Speed Automatic Spindle for Demco E-96 and Demco B-1 (mounting tubes included for B-1)

Model
High-Speed Automatic Spindle
Feature
Fits Demco E-96 & Demco B-1
Package
Unit (includes B-1 mounting tubes)
$650.00
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Manufacturer #
F035
Manufacturer
SubModel
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Style
OEM Ray Foster (Made in USA since 1938)
Colors
Polished Steel
Feature
Quick-Change Clutch — single-handle tool change without stopping motor
Feature
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ETD
3 DAYS