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Keystone Mandrels · Tapered Handpiece · Gross
SKU 010-1221MFR# 1520055
Mandrel
Tapered Handpiece
Pack
Gross
Dozen$26.25
Gross$302.55
The Keystone 512B Mandrel Spiral W/Hex Nut 3/32 Shank is a dental product supplied by Keystone for dental use. Catalog code 1520081.
Keystone Mandrels is a mandrel from Keystone Industries.
This page carries 8 mandrel options: Tapered Handpiece, 512 Spiral, 3/32" Shank, 512B Spiral with Hex Nut, 3/32" Shank, 514A High Speed, 3/32" Shank, 514B Heavy Duty, 514C Heavy Duty, 1/8" Shank, 515 Large Head, 8 mm, 516 Corkscrew, 3/32" Shank. This page carries 2 pack options: Dozen, Gross.
Find it on our Lab Burs & Rotary shelf, under Mandrels & Rotary Accessories.
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 #
- 1520055
- Item code
- 010-1221
Catalog path
- Marketplace
- Laboratory
- Category
- Lab Burs & Rotary
- Subcategory
- Mandrels & Rotary Accessories
Ordering
- Status
- Ships in 3 business days
More from Mandrels & Rotary Accessories
Stocked in the same subcategory.
Questions
What is Keystone Mandrels used for?
The Keystone 512B Mandrel Spiral W/Hex Nut 3/32 Shank is a dental product supplied by Keystone for dental use.
Which mandrel and pack options are on this page?
This page carries 8 mandrel options: Tapered Handpiece, 512 Spiral, 3/32" Shank, 512B Spiral with Hex Nut, 3/32" Shank, 514A High Speed, 3/32" Shank, 514B Heavy Duty, 514C Heavy Duty, 1/8" Shank, 515 Large Head, 8 mm, 516 Corkscrew, 3/32" Shank. This page carries 2 pack options: Dozen, Gross. 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 mandrels
ISO 10323 sets the bore diameters of discs and wheels so that they and the mandrels they run on are interchangeable. A sandpaper mandrel holds the sandpaper used to finish denture acrylic.
A mandrel is an axle, spindle or arbor, usually tapered or cylindrical, placed in the hole of a part to support it while it turns. ISO 13295 covers the mandrels that carry discs and polishers in dentistry.
How mandrels and arbor bands differ
- Mandrels — The holder that goes into the handpiece.
- Arbor Bands — The coated abrasive band itself, not the holder.
What to look at when choosing a mandrel
Fit: the bore of the disc or wheel has to match the mandrel, which is what ISO 10323 standardises.
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.
ISO 6360 identifies every dental rotary instrument by a 15-digit number.
Speed: OSHA's abrasive-wheel rule has the spindle speed checked against the maximum operating speed marked on the wheel.
Sources: The Glossary of Prosthodontic Terms, 9th edition (J Prosthet Dent 2017) · ISO 13295:2007, Mandrels for rotary instruments · ISO 10323:2013, Bore diameters for rotary instruments such as discs and wheels · Rao et al. 2015, Surface roughness of three heat-cured acrylic denture base resins with different conventional lathe polishing techniques (J Indian Prosthodont Soc) · OSHA 29 CFR 1910.94, Ventilation (grinding, polishing and buffing operations) · ISO 2157:2016, Nominal diameters and designation code numbers for rotary instruments · OSHA 29 CFR 1910.215, Abrasive wheel machinery
