Features
- Designed for dry drilling in porcelain and natural stone tile
- Vacuum-brazed diamond tip for improved durability
- Built-in wax insert at the tip to help lubricate and cool while drilling dry
- Cylindrical shank compatible with three-jaw drill chucks
- Intended for use with rotary drill/drivers; do not use in impact mode
- Set provides drilling control for two-handed use to increase precision
Specifications
| Model Number | DDB3PC |
| Contents | (2) 1/4 in., (1) 5/16 in.; includes case |
| Pack Quantity | 3 |
| Shank Type | Cylindrical (compatible with 3-jaw chucks) |
| Intended Tool | Rotary drill/drivers (not for impact mode) |
| Total Length | 2 in (listed) |
| Working Length | 1.5 in (listed) |
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Three-piece set of diamond-tipped drill bits intended for dry drilling in porcelain and natural stone tile. The bit tips use vacuum-brazed diamonds and include a wax insert at the tip to provide lubrication and aid cooling during dry drilling. Cylindrical shanks fit standard three-jaw drill chucks and the bits are intended for use with rotary drill/drivers (not impact mode).
Model Number: DDB3PC
Project Ideas
Business
Backsplash Hardware Drilling Service
Offer a mobile service to drill precise holes in installed porcelain/stone backsplashes for towel hooks, utensil rails, magnetic knife strips, and soap dispensers. Charge per hole with a no-crack guarantee; perfect upsell to kitchen/bath remodelers.
Custom Perforated Tile Decor Shop
Sell lanterns, coasters, and wall tiles with dot-pattern designs and personalized monograms. Use the 1/4–5/16 in. holes for consistent motifs, optionally backfilled with resin or fitted with grommets for hanging.
Jewelry and Key Fob Line from Stone Offcuts
Produce pendants, earrings, and keychains using marble/slate scraps. Drill clean hang holes and finish with simple hardware. Market as sustainable, handcrafted accessories on Etsy and at craft fairs.
Tile Retrofit Partner for Trades
Partner with electricians, plumbers, and cabinet installers to handle delicate drilling in finished tile for cable pass-throughs, thermostat/doorbell anchors, and fixture mounts. Bill per visit or per hole as a specialized subcontractor.
Hands-On Workshop + Kit
Host local classes teaching safe, chip-free drilling in porcelain and stone. Sell a take-home kit including this 3-bit set, a simple drill guide, masking templates, and a project plan (coaster or lantern). Monetize via fees and kit sales.
Creative
Porcelain Plate Wall Clocks
Upcycle porcelain plates into clocks by drilling a centered 5/16 in. hole for the clock shaft and optional 1/4 in. accent holes around the rim for decorative rivets or thread. The diamond tips keep glaze from chipping for a clean, gift-worthy finish.
Perforated Stone Lanterns
Drill star or geometric dot patterns through marble or slate tiles and assemble into a cube with metal corner brackets. The small 1/4–5/16 in. perforations cast beautiful light patterns from a tea light or LED puck inside.
Mosaic Wind Chimes and Mobiles
Cut tile offcuts into shapes and drill clean suspension holes to string with wire, nylon thread, or jump rings. Mix porcelain, marble, and slate for visual and tonal variety; the small hole sizes are perfect for discreet hang points.
Drainage-Ready Planters
Turn teacups, porcelain bowls, or stone cups into planters by adding clean drainage holes. Pair with matching saucers for a minimalist indoor herb set without risking cracking the glaze.
Dot-Inlay Coasters and Trivets
Drill shallow 1/4 in. recesses in stone tiles and fill with contrasting colored epoxy, crushed stone, or brass rod offcuts to create polka-dot or monogram patterns. Sand flush for a tactile, durable surface.