
Keystone Tapered Standard Spindles · Left
The Keystone Spindles Tapered Standard- Right is a dental product supplied by Keystone for dental use. Catalog code 1790070.
Keystone Tapered Standard Spindles belongs to our handpiece parts & accessories range, made by Keystone Industries.
This page carries 2 side options: Left, Right.
Find it on our Lab Equipment shelf, under Handpieces & Motors.
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 #
- 1790060
- Item code
- 010-1532
Catalog path
- Marketplace
- Laboratory
- Category
- Lab Equipment
- Subcategory
- Handpieces & Motors
Ordering
- Status
- Ships in 3 business days
More from Handpieces & Motors
Stocked in the same subcategory.
Questions
What is Keystone Tapered Standard Spindles used for?
The Keystone Spindles Tapered Standard- Right is a dental product supplied by Keystone for dental use.
Which side options are on this page?
This page carries 2 side options: Left, Right. 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 handpiece parts, accessories and maintenance
Lab handpiece parts, accessories and maintenance items keep a handpiece running; the shank is the part of a bur that fits into the handpiece. ISO 1797 sets the dimensions and material properties of the shanks of rotary instruments.
The FDA describes a dental handpiece as a hand-held device, powered by electricity, water, air or a belt, that may include a foot controller for speed and direction of rotation. A micromotor is a short, lightweight electric motor of slow or medium speed and high torque.
In a published denture study the acrylic was finished with a lab micromotor, its control box and a straight handpiece.
How handpieces and their parts differ
- Lab Handpieces & Micromotors — The motor and the handpiece that turn the bur.
- Handpiece Parts Accessories & Maintenance — The parts that keep a handpiece running, not the handpiece itself.
What to look at when choosing
Speed for the job: the same denture study finished acrylic with carbide burs at 10,000 rpm and then with sandpaper and rubber wheels at 5,000 rpm.
Control: the FDA description of a handpiece includes a foot controller that regulates speed and direction of rotation.
Shank: the handpiece has to take the shank of the instruments used in it, and ISO 1797 is the standard that sizes shanks.
Sources: FDA 21 CFR 872.4200, Dental handpiece and accessories · Vibration Exposure and Transmissibility on Dentist's Anatomy: A Study of Micro Motors and Air-Turbines (Int J Environ Res Public Health 2021) · Rao et al. 2015, Surface roughness of three heat-cured acrylic denture base resins with different conventional lathe polishing techniques (J Indian Prosthodont Soc) · The Glossary of Prosthodontic Terms, 9th edition (J Prosthet Dent 2017) · ISO 1797:2017, Shanks for rotary and oscillating instruments







