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LM-RondoPlus™ Sharpening Machine and Accessories

LM-RondoPlus™ Sharpening Machine

Rondo
8600
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Kit Contents

Quantity

LM-RondoPlus™ Sharpening Machine
1
400-Grit Ceramic Sharpening Stone
1
Foot Pedal
1
LM-Fingo™ Test Sticks
2
Emery Tapes
5
User Guidance
1

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Looking for something else?

Here are more purchase options.

Emery Tapes, 5-Pack
8550
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Replacement Foot Pedal
8630
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LM-Fingo™ Test Sticks, 6-Pack
8606
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LM-Fingo™ Test Sticks, 2-Pack
8602
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600-Grit Sharpening Stone, White
8660
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400-Grit Sharpening Stone, Grey
8640
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320-Grit Sharpening Stone, Black
8632
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Total: $0.00

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Sharp Instruments. Simple Maintenance.

Maintain the Cutting Performance of Scalers and Curettes 

Sharp periodontal instruments support efficient calculus removal, tactile control, and a more comfortable working technique. LM-RondoPlus™ makes routine instrument maintenance fast and repeatable, helping clinicians restore sharp cutting edges without complex adjustments, instrument mounts, or grinding solutions.

Here’s how LM-RondoPlus™ benefits your practice:

  • Efficient sharpening: Restore sharp cutting edges in seconds.
  • Consistent technique: Use the same basic approach across common scaler and curette designs.
  • Controlled sharpening: Low-speed operation helps prevent overheating and minimize unnecessary metal wear.
  • Instrument preservation: Maintain the instrument’s original blade shape and extend its useful life.
  • Simplified operation: A 360° rotating stone casing and optional foot pedal support comfortable, precise control. 

Easy to Use

Place the instrument on the lower periodontal instrument rest with the face positioned horizontally. Hold the instrument steady and rotate the stone casing evenly along the cutting edge. The simple process allows clinicians to focus on the lower shank, face, and cutting edge rather than complex shank angles.

Quick and Versatile

LM-RondoPlus™ is ready for use whenever instruments need attention. No complex adjustments, instrument mounts, or grinding solutions are required. The ceramic sharpening stone rotates in either direction, and the optional foot pedal allows the stone to rotate only while the pedal is pressed. 

Safe and Accurate

Low-speed operation sharpens instruments without overheating the blade or altering the steel’s properties. Controlled movement of the stone along the cutting edge helps minimize wear while preserving the instrument’s original blade shape. 

One Basic Technique Across Common Periodontal Instruments

Instrument Type 

Application 

Sickle Scalers 

Maintain sharp cutting edges for efficient supragingival calculus removal. 

Universal Curettes 

Sharpen both cutting edges while helping preserve the rounded toe and blade contours. 

Gracey Curettes 

Maintain the working cutting edge while preserving the intended area-specific blade design. 

Dual Graceys 

Maintain double-ended Dual Gracey instruments using the same simple positioning and sharpening approach. 

Sharpen in Three Simple Steps

  1. Position the Instrument: Use the lower rest position for periodontal instruments. Place the instrument on the rest with the face positioned horizontally.
  2. Sharpen the Cutting Edge: Hold the instrument steady and rotate the stone evenly along the cutting edge, following the blade contour.
  3. Verify Sharpness: Lightly draw the instrument across an LM-Fingo™ test stick in its working position. A sharp edge will bite into the test surface, while a dull edge will glide. 

Choose the Grit for the Sharpening Need

The LM-RondoPlus™ system includes a 400-grit ceramic sharpening stone. Finer and coarser replacement stones are available to support different sharpening needs. 

Stone 

Relative Grit 

Recommended Use 

600-Grit, White 

Finer 

Routine edge refinement and finishing 

400-Grit, Grey 

Standard 

General sharpening and routine maintenance 

320-Grit, Black 

Coarser 

Restoring more heavily worn cutting edges 

When the stone rotates away from the instrument, the sharpening effect is gentler. For more aggressive sharpening, use a coarser stone rotating toward the instrument.

Keep the Sharpening Stone Performing Consistently 

Metal particles released during sharpening can collect on the stone. After each sharpening session, clean the rotating stone with a soft, lint-free cloth moistened with alcohol. Periodic use of emery tapes helps maintain the stone’s sharpening effectiveness. The stone can be replaced when worn or changed to a different grit as needed. 

Know When the Cutting Edge Is Sharp

LM-RondoPlus™ includes two LM-Fingo™ test sticks. The test stick can remain mounted on the machine or be worn on a finger. Lightly draw the instrument across the test surface in its working position. A sharp edge will bite into the surface; a dull edge will glide, indicating the need for additional sharpening or instrument replacement.

Technical Specifications

Item 

Description 

Primary Product Code 

8600 

Intended Focus 

Resharpenable periodontal hand instruments 

Included Sharpening Stone 

400-grit ceramic stone 

Available Stone Grits 

320, 400, and 600 grit 

Stone Rotation 

Bidirectional 

Stone Casing 

360° rotatable 

Instrument Rest Position 

Lower position for periodontal instruments 

Foot Pedal 

Included; optional during operation 

Grinding Solution 

Not required 

Sharpness Test 

LM-Fingo™ test sticks included 

How to Use

Procedures

General

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