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Keystone Superior Rubber Points — 100/Box · Hard
SKU 010-1326MFR# 1640020
Type
Hard
The Keystone Superior Special Hard Red Rubber Point is a dental laboratory product supplied by Keystone Industries for general lab use. Catalog code 1640081.
Keystone Superior Rubber Points — 100/Box is a mounted rubber point from Keystone Industries.
This page carries 4 type options: Hard, Green, Blue Flex, Special Hard Red.
Find it on our Lab Burs & Rotary shelf, under Mounted Points & Stones.
Orders placed before 3 PM ET ship the same day when the item is on our shelf (otherwise within 3 business days), and ground shipping is free over $10.
Product
- Manufacturer
- Keystone Industries
- Manufacturer #
- 1640020
- Item code
- 010-1326
Catalog path
- Marketplace
- Laboratory
- Category
- Lab Burs & Rotary
- Subcategory
- Mounted Points & Stones
Ordering
- Status
- Ships in 3 business days
More from Mounted Points & Stones
Stocked in the same subcategory.
Questions
What is it used for?
The Keystone Superior Special Hard Red Rubber Point is a dental laboratory product supplied by Keystone Industries for general lab use.
Which type options are on this page?
This page carries 4 type options: Hard, Green, Blue Flex, Special Hard Red. Pick one to see its price, part number and stock.
When does it ship?
In-stock orders placed before 3 PM ET ship the same day; anything not on our shelf ships within 3 business days.Ground shipping is free over $10.
About mounted rubber points
Rubber is one of the organic bonds OSHA lists for abrasive wheels. ISO 21671 applies to mounted polishers as well as unmounted ones.
A mounted point or stone is an abrasive already fixed on its own shank; the FDA names the abrasive point among the abrasive devices of 21 CFR 872.6010, Class I. OSHA groups abrasive wheels by bond: organic, such as resin, rubber or shellac, and inorganic, such as clay, glass or porcelain.
How the types on this shelf differ
- Mounted Stones — A rigid bonded abrasive, for grinding and shaping.
- Mounted Rubber Points — A rubber-bonded point already fixed on its own shank.
- Flexible Silicone Polishers — The abrasive is embedded in a flexible silicone body.
- Polishing Wheels — A wheel for the smoothing steps that follow grinding.
- Grinding Wheels — The coarse step: it shapes the work and removes excess material.
- Ceramic & Porcelain Polishers — Polishes the ceramic itself, in place of a glaze layer.
What to look at when choosing
Sequence: a review describes polishing in three stages, coarse finishing, intermediate polishing and final polishing. Coarse tools shape the work and remove excess material; medium ones smooth out the grooves and scratches the coarse ones leave.
Size: ISO 2157 sets the nominal diameters of the working part of burs, laboratory burs, grinding instruments, diamond instruments and mandrels, and how they are designated.
Shank: the part that fits into the handpiece. ISO 1797 sets shank dimensions and material properties.
Speed: OSHA's abrasive-wheel rule has the spindle speed checked against the maximum operating speed marked on the wheel.
Reuse: the CDC states that burs, polishing points and rag wheels used on contaminated appliances or prostheses should be heat-sterilised, disinfected between patients, or discarded.
Sources: FDA 21 CFR 872.6010, Abrasive device and accessories · OSHA 29 CFR 1910.211, Machinery and machine guarding: definitions · OSHA 29 CFR 1910.94, Ventilation (grinding, polishing and buffing operations) · OSHA 29 CFR 1910.215, Abrasive wheel machinery · ISO 21671:2006, Rotary polishers · Does Sterilization Affect the Performance of Single-Step Resin Composite Polishers? (Dent J 2023) · A Comprehensive Review of the Surface and Chromatic Properties of Monolithic Zirconia: Polishing and Finishing Methods (Cureus 2024) · ISO 2157:2016, Nominal diameters and designation code numbers for rotary instruments · ISO 1797:2017, Shanks for rotary and oscillating instruments · CDC, Guidelines for Infection Control in Dental Health-Care Settings, 2003 (MMWR 52 RR-17)
