KEYSTONE HP #R8 RED Mounted Points, For Chrome Processors, 3/32in Shank, Package - #1631141

KEYSTONE  HP #R8 RED Mounted Points, For Chrome Processors, 3/32in  Shank, Package - #1631141
SKU: 446620 - Ordered from Manufacturer - ETD 21 DAYS
$18.00
$11.17
You save: $6.83 ( 37% )
Quantity:

Minimum quantity is 1.

Manufacturer #
1631141
Manufacturer
Model
HP Mounted Silicon Carbide Stone
SubModel
Red (#R8) 12pk — verify shape
Style
#R8
Colors
Red
Sizes
(verify shape — R8 series)
Features
HP
Package
12pk
ETD
21 DAYS

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Description

KEYSTONE Industries
USA · Gibbstown, NJ · Distributed by USDD
USDD#: 446620
MFG#: 1631141
Keystone Industries HP Mounted Silicon Carbide Stone KEYSTONE HP

KEYSTONE HP

HP MOUNTED Silicon Carbide Stone · Red (#R8) 12pk — verify shape

Manufacturer item # 1631141  ·  USDD item # 446620  ·  Package 12pk  ·  Variant Red (#R8) 12pk — verify shape
Shank3/32" HP — lab bench use
AbrasiveSilicon carbide, green bond
Color codeRed — general-purpose lab work
Use environmentLaboratory bench — straight HP handpiece
SterilizationSingle-use abrasive (discard when worn)

Overview

KEYSTONE Red MOUNTED Silicon-Carbide STONES are the general-purpose lab-bench abrasive for everyday workflow — acrylic adjustment, plaster reduction, base-metal trimming, and other miscellaneous grinding tasks where a specialty color (green for porcelain, pink for noble metals, blue for chrome-cobalt) is not needed. The Red bond is the all-around utility option — slightly coarser than pink, slightly less aggressive than green — suitable for bench cleanup and routine tasks.

  • Red silicon-carbide bond. General-purpose abrasive grade — useful across most lab grinding tasks.
  • 3/32" HP shank, pre-MOUNTED. No separate mandrel required.
  • Multiple head shapes including saucer geometry. Covers small-area grinding and detail contour work.
  • Numbered size system (R-x). Consistent inventory ordering.
  • Standard 12-pack box.

Why dental professionals choose this Red MOUNTED silicon-carbide stone

  • All-purpose utility stone for routine lab grinding — keep in stock for everyday tasks.
  • Pre-MOUNTED on the 3/32" HP shank.
  • Saucer and other detail shapes available for tight-area contour work.
  • Made by KEYSTONE Industries.
  • Numbered R-x size system makes inventorying simple.

Technical specifications

BrandKEYSTONE Industries
ManufacturerKEYSTONE Industries
Country of originUSA
Product lineHP MOUNTED Silicon Carbide Stone
Variant / Sub-lineRed (#R8) 12pk — verify shape
ApplicationLab bench general-purpose grinding — acrylic, plaster, base metals
Style / Shape#R8
Size(verify shape — R8 series)
ColorRed
Package12pk
Shipping weight (g)260
Manufacturer item #1631141
USDD item #446620

Material & regulatory

KEYSTONE HP-shank MOUNTED silicon-carbide STONES are laboratory bench tools, not intraoral medical devices. Intended for use by dental technicians on bench straight handpieces. Manufactured by KEYSTONE Industries.

Compare with cross-brand alternatives

Looking for alternatives? Here are equivalent products from other manufacturers carried by USDD, serving the same clinical or laboratory purpose. The KEYSTONE Industries HP MOUNTED Silicon Carbide Stone row is highlighted at the top.

Brand · LineProductMFG#USDD#PackageFeature
CURRENT KEYSTONE Industries · HP MOUNTED Silicon Carbide Stone KEYSTONE HP #R8 Red MOUNTED points, For Chrome Processors, 3/32in Shank, Packa 1631141 446620 12pk Red (#R8) 12pk — verify shape
Shofu · Shofu Dental STONES Shofu MOUNTED silicon-carbide stone (color-coded) 0050xx 12 per box Color-coded SiC bond, multiple grit grades
Brasseler · Brasseler Lab Brasseler MOUNTED abrasive stone, HP S-HPxx 12 or 72 per box HP-shank silicon-carbide MOUNTED POINT
Dedeco · Dedeco Dedeco MOUNTED stone, HP shank, color-coded DD-Mxx 12 per box HP-shank silicon-carbide MOUNTED POINT
NTI · NTI Kahla NTI HP-MOUNTED silicon-carbide stone NTI-Sxx 12 per box Made in Germany, HP-MOUNTED SiC STONES
House Brand · USDD Lab USDD-line HP-MOUNTED silicon-carbide stone USDDM-x 12 per box Value-tier HP-MOUNTED SiC, color-coded

Order this Red MOUNTED silicon-carbide stone

Available now from US Dental Depot. Request a custom quote for volume orders or speak with a product specialist for compatibility questions and clinical guidance.

KEYSTONE Industries is a trademark of its respective owner. All other trademarks are the property of their respective holders.
Product description last updated: May 26, 2026

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