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Alpha 1/2 inch dry core bit on a white background
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Alpha dry core bit cutting a countertop
Alpha 1/2 inch dry core bit on a white background
Alpha 3/4 inch dry core bit on a white background
Alpha 1 inch dry core bit on a white background
Alpha 1 1/4 inch dry core bit on a white background
Alpha 1 3/8 inch dry core bit on a white background
Alpha 1 1/2 inch dry core bit on a white background
Alpha 2 inch dry core bit on a white background
Alpha dry core bit cutting a countertop

Alpha Dry Core Bits

Dry Core Bits for Granite, Porcelain & Engineered Stone

Save $23.96 Save $15.75
$87.44
$87.44 - $127.39
$87.44
$71.69
$70.81 - $103.43
$71.69
Alpha  |  MPN: DRB00500  |  UPC: 749173461330
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Size: 1/2"

Dry Core Bit Specifications

  • Bit Diameter: 1/2"
  • Maximum RPM: 12,000 RPM
  • Thread Size: 5/8"-11
  • Compatible Materials: Granite, quartzite, engineered stone, porcelain, and crystallized glass
  • Application: Faucet holes, plumbing penetrations, and access holes

Alpha Dry Core Bits are designed for fast dry drilling in granite, porcelain, engineered stone, and crystallized glass without water. They produce clean, accurate holes for plumbing, fixture, and electrical installations using standard 5/8"-11 angle grinders.

Key Features
  • Dry Drilling Design: Eliminates water setup and cleanup.
  • High-Speed Cutting: Supports fast drilling in hard surface materials.
  • 5/8"-11 Thread: Fits most standard high-speed angle grinders.
  • Clean Hole Creation: Produces accurate holes for fixtures and plumbing.
  • Sink Cutout Support: Helps create rounded corners in countertop openings.
  • Multi-Material Drilling: Designed for granite, porcelain, engineered stone, and glass.
Best For
  • Granite drilling
  • Porcelain drilling
  • Engineered stone fabrication
  • Fixture and plumbing holes
  • Countertop installations

Why Professionals Choose Tile This

  • Free shipping on eligible orders $200+
  • Same-day shipping before 2 PM CST (Mon–Sat) for in-stock items
  • Eligible for our Contractor Pricing Program
  • Authorized Alpha Dealer
Alpha Dry Core Bits 1/2" $71.69

Description

Alpha Dry Core Bits are designed for high-speed dry drilling in granite, porcelain, engineered stone, quartzite, and crystallized glass. Built for use with standard 5/8"-11 angle grinders, they support clean, accurate hole drilling without requiring water.

Designed for countertop fabrication and installation work, Alpha Dry Core Bits support plumbing penetrations, fixture mounting, electrical access holes, and rounded corner cuts in sink openings while reducing setup time and cleanup associated with wet drilling.

Available Sizes & Specifications

Part No. Diameter Max RPM Type Thread
DRB00500 1/2" 12,000 Dry 5/8"-11
DRB00750 3/4" 12,000 Dry 5/8"-11
DRB01000 1" 12,000 Dry 5/8"-11
DRB01375 1-3/8" 12,000 Dry 5/8"-11
DRB01500 1-1/2" 12,000 Dry 5/8"-11
DRB02000 2" 12,000 Dry 5/8"-11

Frequently Asked Questions

What materials can Alpha Dry Core Bits drill?
Alpha Dry Core Bits are designed for granite, porcelain, quartzite, engineered stone, and crystallized glass.
Do these core bits require water during drilling?
Alpha Dry Core Bits are designed for dry drilling applications without requiring water.
What tools are compatible with these core bits?
Alpha Dry Core Bits fit most high-speed angle grinders with a 5/8"-11 threaded spindle.
What applications are these core bits commonly used for?
Alpha Dry Core Bits are commonly used for plumbing holes, fixture mounting, electrical access holes, and countertop fabrication work.
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