Description
Sinkits Blind Hole Bit, 1/4 in x 5/8-11 is a wet-use diamond tool for fabricators drilling anchor holes in granite, quartz, concrete, and other hard surfaces. This sinkits blind hole bit is built around a true 1/4 inch diameter and a 5/8-11 arbor, which helps crews match Sinkits clip instructions without guessing on hole size during undermount sink work.
Sinkits Blind Hole Bit Benefits
- True 1/4 inch diameter matches Sinkits installation guidance for anchor hole drilling.
- 5/8-11 arbor fits many stone fabrication tools already used in countertop shops.
- Diamond segment design is made for hard materials such as granite and engineered quartz.
- Wet drilling setup helps control heat and supports steadier bit life in repeated use.
- Compact blind-hole format gives better control when placing clips near sink rims and divider walls.
Sinkits instructions call for 0.25 inch holes with a minimum depth of 1/2 inch, with 3/4 inch preferred when possible. That makes this bit a practical fit for crews installing undermount sinks in stone and quartz tops, especially when the job calls for repeatable anchor placement across several clip locations.
Common Applications
- Drilling Sinkits anchor holes in granite kitchen countertops.
- Preparing quartz vanity tops for undermount sink clip installation.
- Creating blind holes in concrete and other hard surface materials for sink hardware.
- Stocking fabrication carts with a dedicated 1/4 inch anchor-hole bit for repeat service work.
Compatible Materials
- Granite and natural stone.
- Engineered quartz and similar hard-surface countertop materials.
- Concrete and other dense mineral substrates where Sinkits hardware is used.
Sinkits Blind Hole Bit Technical Specifications
| Property | Value |
|---|---|
| Bit style | Blind-hole diamond segment bit |
| Diameter | 1/4 in true size |
| Arbor | 5/8-11 |
| Recommended use | Wet drilling |
| Primary fit | Sinkits sink mounting system hole prep |
Packaging and Ordering
Keep this bit on hand when your shop wants a dedicated anchor-hole tool instead of adapting a general-purpose bit to Sinkits work. Pair it with our undermount sink clips, anchors, and brackets category, and review installation guidance from Sinkits Mounting Solutions before drilling production tops.
Need Help?
If you need help matching this bit to a drilling tool, anchor layout, or countertop material, call (800) 220-1966 or email [email protected].
Reviews
There are no reviews yet.