$ 27.97
$ 27.97
$ 27.97
Alpha® 10mm to 5/8"-11 Adapter for Electroplated Drill Bits
The Alpha® CH1058 thread adapter lets fabricators use 10mm-shank electroplated diamond drill bits on 5/8"-11 water-fed polishers and angle grinders. Slim, fully threaded and reusable, the adapter brings dozens of European-spec drill-bit diameters onto the standard North American 5/8"-11 spindle — ideal for shop drilling on porcelain, sintered slabs, Dekton, glass and natural stone where a dedicated 10mm drill is not on hand.
Features
- Converts 5/8"-11 Polisher Spindle to 10mm Drill-Bit Thread
- Designed for Alpha® Electroplated Drill Bits with 10mm Shank
- Compatible with Water-Fed Polishers and Angle Grinders
- Compact 4.5" x 2.5" x 1.25" Package
- Reusable Across Drill-Bit Changes
- Light 0.10 lb Weight — Ships Easily with Bits
- Pairs with the Full Alpha® Electroplated Drill Bit Range
| Part No. | Type | Spindle Thread | Drill Thread | Use |
|---|---|---|---|---|
| CH1058 | Adapter | 5/8"-11 | 10mm | Mount 10mm Electroplated Drill Bits on 5/8"-11 Polishers |
- Confirm your polisher spindle is 5/8"-11 and your electroplated drill bit has a 10mm thread.
- Thread the CH1058 adapter onto the polisher spindle hand-tight using the spindle lock.
- Thread the 10mm drill bit onto the exposed 10mm stud of the adapter.
- Snug the drill bit fully against the adapter face — do not overtighten.
- Engage water flow before contact — electroplated bits must be cooled during drilling.
- Drill at the bit’s recommended RPM; let the diamond do the cutting, do not force-feed.
- After use, remove the bit and adapter, rinse off slurry, dry and store.
- Inspect the adapter threads before each use; replace if cross-threaded or worn.
Thread Adapter (10mm → 5/8"-11) — CH1058
| Part No. | CH1058 |
| UPC | 749173461477 |
| Type | Thread Adapter (10mm → 5/8"-11) |
| Thread | 5/8"-11 (female) — 10mm (male) |
| Max RPM | — |
| Recommended For | Mounts 10mm-shank electroplated drill bits onto 5/8"-11 water-fed polishers |
| Packaged Weight | 0.10 lbs |
| Package Dimensions | 4.5" x 2.5" x 1.25" |
| Commodity Code | 8466.91.0000 |
| Country of Origin | China |
| Property | Detail |
|---|---|
| Spindle (Female) Thread | 5/8"-11 |
| Drill (Male) Thread | 10mm |
| Use With | Alpha® Electroplated Drill Bits, Water-Fed Polishers, Angle Grinders |
| Reusable | Yes |
| Recommended Use | Wet Drilling |
| Country of Origin | China |
| Commodity Code | 8466.91.0000 |
What does the CH1058 adapter do?
It converts a standard 5/8"-11 polisher / grinder spindle so you can mount Alpha® electroplated drill bits that have a 10mm thread.
Which drill bits work with this adapter?
Alpha® electroplated diamond drill bits with a 10mm shank — commonly used for porcelain, sintered slabs, Dekton, glass and natural stone.
Can I use this adapter with an angle grinder?
Yes, provided the grinder has a 5/8"-11 spindle and the drilling application is suitable for the tool.
Do I need water?
Yes — electroplated drill bits must be wet-cooled. Use a water-fed polisher or a separate water feed.
Is the adapter reusable?
Yes — the CH1058 is fully reusable across drill-bit changes. Replace if the threads show cross-threading or wear.
Where is it made?
Made in China to Alpha® quality standards.
What is the package weight and size?
0.10 lb in a 4.5" x 2.5" x 1.25" package — ships easily alongside drill bits.
Does this fit M14 spindles?
No. CH1058 is sized for 5/8"-11 spindles only. Contact us for M14-thread adapter options.
No product-specific videos are currently available from the manufacturer or DST.
⚠ WARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov. Always wear appropriate PPE.