$ 56.94
$ 56.94
$ 1.00
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Size
Alpha® Electroplated Drill Bits
Alpha® Electroplated wet diamond drill bits cut clean anchor holes in marble, granite, engineered stone, ceramic, porcelain, and glass tile or panels. They work in any standard 3/8" or larger drill, and also fit water-fed polishers with a 5/8"-11 spindle when used with the Alpha CH1058 adapter. Maximum 3,500 RPM, wet use only.
Features
- Electroplated diamond bit for fast, clean holes in tile and stone
- Works on marble, granite, engineered stone, ceramic, porcelain, and glass
- Fits any standard 3/8" or larger drill chuck
- Compatible with 5/8"-11 water-fed polishers via the CH1058 adapter
- Ideal for pre- and post-installation anchor holes (faucets, plumbing, fixtures)
- Seven sizes from 3/16" to 1-1/2"
- Maximum 3,500 RPM, wet use only
| Part No. | Size | Type | Shank | UPC |
|---|---|---|---|---|
| CH7205 | 3/16" | Electroplated | 3/8" shank | 749173461439 |
| CH7206 | 1/4" | Electroplated | 3/8" shank | 749173461415 |
| CH7208 | 5/16" | Electroplated | 3/8" shank | 749173461446 |
| CH7210 | 3/8" | Electroplated | 3/8" shank | 749173461453 |
| CH7212 | 1/2" | Electroplated | 3/8" shank | 749173461422 |
| CH7235 | 1-3/8" | Electroplated | 3/8" shank | 749173461460 |
| CH7240 | 1-1/2" | Electroplated | 3/8" shank | 749173461552 |
- Mark the hole location and secure the workpiece. Use a centering jig or the Alpha Drill Bit Guide/Water Delivery System to prevent the bit from skating on the glaze.
- Chuck the 3/8" shank into a standard 3/8" or larger drill. To run on a water-fed polisher, thread the CH1058 adapter onto the 5/8"-11 spindle first.
- Apply a steady stream of cool water at the cutting point throughout drilling — these bits are wet use only.
- Start at an angle to break the glaze, then bring the bit upright once it has bitten in. Keep RPM at or below 3,500.
- Use light, even pressure and lift the bit every few seconds to flush slurry and re-cool the diamond.
- Slow down as you break through the back face to avoid chipping. Rinse the bit clean after each hole.
3/16" — Electroplated — CH7205
| Part No. | CH7205 |
| UPC | 749173461439 |
| Diameter | 3/16" |
| Bit Type | Electroplated wet diamond |
| Shank | 3/8" |
| Max RPM | 3,500 |
| For Use On | Marble, granite, engineered stone, ceramic, porcelain & glass tile (wet) |
| Packaged Weight | 0.05 lbs |
| Package Dimensions | 4.5" x 2.5" x 1.25" |
| Commodity Code | 8207.19.6065 |
| Country of Origin | Taiwan |
| Data Sheet | Electroplated Drill Bits Flyer (PDF) |
1/4" — Electroplated — CH7206
| Part No. | CH7206 |
| UPC | 749173461415 |
| Diameter | 1/4" |
| Bit Type | Electroplated wet diamond |
| Shank | 3/8" |
| Max RPM | 3,500 |
| For Use On | Marble, granite, engineered stone, ceramic, porcelain & glass tile (wet) |
| Packaged Weight | 0.05 lbs |
| Package Dimensions | 4.5" x 2.5" x 1.25" |
| Commodity Code | 8207.19.6065 |
| Country of Origin | Taiwan |
| Data Sheet | Electroplated Drill Bits Flyer (PDF) |
5/16" — Electroplated — CH7208
| Part No. | CH7208 |
| UPC | 749173461446 |
| Diameter | 5/16" |
| Bit Type | Electroplated wet diamond |
| Shank | 3/8" |
| Max RPM | 3,500 |
| For Use On | Marble, granite, engineered stone, ceramic, porcelain & glass tile (wet) |
| Packaged Weight | 0.05 lbs |
| Package Dimensions | 4.5" x 2.5" x 1.25" |
| Commodity Code | 8207.19.6065 |
| Country of Origin | Taiwan |
| Data Sheet | Electroplated Drill Bits Flyer (PDF) |
3/8" — Electroplated — CH7210
| Part No. | CH7210 |
| UPC | 749173461453 |
| Diameter | 3/8" |
| Bit Type | Electroplated wet diamond |
| Shank | 3/8" |
| Max RPM | 3,500 |
| For Use On | Marble, granite, engineered stone, ceramic, porcelain & glass tile (wet) |
| Packaged Weight | 0.05 lbs |
| Package Dimensions | 4.5" x 2.5" x 1.25" |
| Commodity Code | 8207.19.6065 |
| Country of Origin | Taiwan |
| Data Sheet | Electroplated Drill Bits Flyer (PDF) |
1/2" — Electroplated — CH7212
| Part No. | CH7212 |
| UPC | 749173461422 |
| Diameter | 1/2" |
| Bit Type | Electroplated wet diamond |
| Shank | 3/8" |
| Max RPM | 3,500 |
| For Use On | Marble, granite, engineered stone, ceramic, porcelain & glass tile (wet) |
| Packaged Weight | 0.10 lbs |
| Package Dimensions | 4.5" x 2.5" x 1.25" |
| Commodity Code | 8207.19.6065 |
| Country of Origin | Taiwan |
| Data Sheet | Electroplated Drill Bits Flyer (PDF) |
1-3/8" — Electroplated — CH7235
| Part No. | CH7235 |
| UPC | 749173461460 |
| Diameter | 1-3/8" |
| Bit Type | Electroplated wet diamond |
| Shank | 3/8" |
| Max RPM | 3,500 |
| For Use On | Marble, granite, engineered stone, ceramic, porcelain & glass tile (wet) |
| Packaged Weight | 0.10 lbs |
| Package Dimensions | 4.5" x 2.5" x 1.25" |
| Commodity Code | 8207.19.6065 |
| Country of Origin | Taiwan |
| Data Sheet | Electroplated Drill Bits Flyer (PDF) |
1-1/2" — Electroplated — CH7240
| Part No. | CH7240 |
| UPC | 749173461552 |
| Diameter | 1-1/2" |
| Bit Type | Electroplated wet diamond |
| Shank | 3/8" |
| Max RPM | 3,500 |
| For Use On | Marble, granite, engineered stone, ceramic, porcelain & glass tile (wet) |
| Packaged Weight | 0.10 lbs |
| Package Dimensions | 4.5" x 2.5" x 1.25" |
| Commodity Code | 8207.19.6065 |
| Country of Origin | Taiwan |
| Data Sheet | Electroplated Drill Bits Flyer (PDF) |
| Property | Detail |
|---|---|
| Bit Type | Electroplated wet diamond drill bit |
| Shank | 3/8" (fits 3/8" or larger drill chucks) |
| Max RPM | 3,500 |
| Use | Wet only — continuous water supply required |
| Materials | Marble, granite, engineered stone, ceramic, porcelain, glass tile & panels |
| Available Diameters | 3/16" · 1/4" · 5/16" · 3/8" · 1/2" · 1-3/8" · 1-1/2" |
| Polisher Adapter | Alpha CH1058 (10mm to 5/8"-11) sold separately |
| Commodity Code | 8207.19.6065 |
| Country of Origin | Taiwan |
- Alpha 10 mm to 5/8"-11 Adapter (CH1058) — converts the 10 mm shank of these bits to a 5/8"-11 spindle.
- CH1058 Drill Bit Adapter — 10mm to 5/8"-11 thread, lets the drill bits run on water-fed polishers.
- Drill Bit Guide / Water Delivery System — centering guide and water feed for clean anchor holes on tile and stone.
- Vacuum Brazed Trimmer Bit — dry cutting for larger holes and curves.
- Ecoguard CD — dust and water containment for core drilling.
- Laser Core Bits — laser-welded segmented core bits for wet or dry use.
No frequently-asked questions are currently published by the manufacturer for this product. Contact us for application help — e-commerce@dynamicstonetools.com.
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⚠ WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov. Wet use only; wear safety glasses, hearing protection, and gloves. Read Alpha® operating instructions before use.
Specifications
| Size | 1-1/2", 1-3/8", 1/2", 1/4", 3/16", 3/8", 5/16" |