Alpha® Vacuum-Brazed Trimmer Bit — 1/4" Shank
The Alpha® Vacuum-Brazed Trimmer Bit is built for cutting non-standard shaped openings such as electrical receptacles, water-valve holes, floor drains and shower-knob cutouts. Vacuum-brazed diamond construction delivers extended life on granite, engineered and natural stone, porcelain and ceramic tile. Operates wet or dry on a high-speed trimmer tool with a standard 1/4" collet.
Features
- Vacuum-brazed diamond — extended life on hard materials
- Cuts granite, engineered & natural stone, porcelain and ceramic tile
- Ideal for receptacles, valve holes, drains and shower-knob cutouts
- Wet or dry operation
- 1/4" shank fits high-speed trimmer tools
- Compact 1/4" diameter for tight, accurate cutouts
- Max 33,000 RPM
| Part No. | Diameter | Shank | Max RPM | UPC |
|---|---|---|---|---|
| DTB00250 | 1/4" | 1/4" | 33,000 | 749173461378 |
- Chuck the 1/4" shank into a high-speed trimmer tool (laminate router or pneumatic die grinder).
- Mark the cutout outline on the tile or stone face; secure the workpiece.
- Plunge straight in at the start of the line, then trace the outline at a steady feed rate.
- For best diamond life use water mist or a wet trimmer setup; for dry cutting, pause periodically so the bit can cool.
- Do not exceed 33,000 RPM — the rated maximum spindle speed.
- Inspect frequently; replace when the diamond face is worn smooth.
1/4" — 1/4" Shank — Vacuum-Brazed Diamond — DTB00250
| Part No. | DTB00250 |
| UPC | 749173461378 |
| Size | 1/4" |
| Type | Vacuum-Brazed Diamond |
| Attachment | 1/4" Shank |
| Max RPM | 33,000 |
| Recommended For | Granite, Engineered & Natural Stone, Porcelain, Ceramic Tile |
| Packaged Weight | 0.10 lbs |
| Package Dimensions | 4.5" x 2.5" x 1.25" |
| Commodity Code | 8207.19.2030 |
| Country of Origin | Japan |
| Property | Detail |
|---|---|
| Bond | Vacuum-Brazed Diamond |
| Shank | 1/4" |
| Application | Wet or Dry |
| Materials | Granite, Engineered & Natural Stone, Porcelain, Ceramic Tile |
| Max Spindle Speed | 33,000 RPM |
| Country of Origin | Japan |
| HTS / Commodity | 8207.19.2030 |
No frequently-asked questions are currently published for this product. Contact us at e-commerce@dynamicstonetools.com.
Trimmer Bit for Receptacle Cut-Out
⚠ WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov. Always wear appropriate PPE.





