Pack
6
6$30.10
20$50.59
The Directa Snap-On DiscGuard (20) is a burs & diamonds product supplied by Directa for rotary cutting and finishing. Catalog code 92220.
Directa ContacEZ Snap-On DiscGuard belongs to our rotary accessories range, made by Directa.
This page carries 2 pack options: 6, 20.
Find it on our Finishing & Polishing shelf, under Mandrels & 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
- Directa
- Manufacturer #
- 92206
- Item code
- 107-0708
Catalog path
- Marketplace
- Clinical
- Category
- Finishing & Polishing
- Subcategory
- Mandrels & Accessories
Ordering
- Status
- Ships in 3 business days
More from Mandrels & Accessories
Stocked in the same subcategory.
Questions
What is Directa ContacEZ Snap-On DiscGuard used for?
The Directa Snap-On DiscGuard (20) is a burs & diamonds product supplied by Directa for rotary cutting and finishing.
Which pack options are on this page?
This page carries 2 pack options: 6, 20. 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 rotary accessories
Rotary accessories are the other parts that go between the handpiece and the work: guards, holders and the screws and pins that fix an abrasive in place. ISO 6360-7 covers them alongside mandrels and polishers in its coding of special instruments.
A mandrel is the carrier that holds a disc, wheel or buff in the handpiece: a glossary defines it as a tapered or cylindrical axle, spindle or arbor placed in a hole to support it during machining, and as the shaft and bearings on which a tool is mounted. The FDA describes an abrasive device as attached to a shank that is held by a handpiece, and lists the guard for an abrasive disk among the accessories in the same Class I group (21 CFR 872.6010). ISO 6360-7 codes mandrels and special instruments in the same fifteen-digit numbering scheme as the instruments they carry.
What is here is the parts that make an abrasive run true, rather than the abrasive itself. ISO 6360-2 codes the shapes of all dental rotary instruments and of several accessories used in connection with them.
What to look at when choosing a mandrel
Fit: the mandrel has to match both the handpiece and the hole in the disc, since the glossary definition is a spindle placed in a hole to support the tool during machining.
Code: ISO 6360-7 puts mandrels into the same numbering scheme as the instruments they drive, as the fourth group of three digits in the fifteen-digit overall number.
Testing: ISO 8325 covers dimensional characteristics, neck strength and surface roughness of rotary instruments, and names polishers and grinding instruments among them.
Sources: The Glossary of Prosthodontic Terms, 9th edition (J Prosthet Dent 2017) · FDA 21 CFR 872.6010, Abrasive device and accessories · ISO 6360-7:2006, Number coding system for rotary instruments — Mandrels and special instruments · ISO 6360-2:2004, Number coding system for rotary instruments — Shapes · ISO 8325:2023, Dentistry — Test methods for rotary instruments
