The open blue carrying case of the Bosch 7-piece diamond hole saw set, showing the six hole saws and the quick-change mandrel arranged in their designated slots.
A person uses a Bosch drill with a diamond hole saw to cut a hole in a tile, which is resting on top of a bucket for support in a partially tiled bathroom.
A close-up of a Bosch cordless drill with the AutoStart pilot bit, being used to drill a small, precise hole in a tiled bathroom wall for installing a fixture.
A close-up view of a large Bosch diamond hole saw mounted in a drill, actively cutting a clean hole through a porcelain tile during a wet-cutting process.
Bosch HDG7 7-Piece Diamond Hole Saw Set with Vacuum Brazing Technology for Porcelain Granite Tile
The open blue carrying case of the Bosch 7-piece diamond hole saw set, showing the six hole saws and the quick-change mandrel arranged in their designated slots.
A person uses a Bosch drill with a diamond hole saw to cut a hole in a tile, which is resting on top of a bucket for support in a partially tiled bathroom.
A close-up of a Bosch cordless drill with the AutoStart pilot bit, being used to drill a small, precise hole in a tiled bathroom wall for installing a fixture.
A close-up view of a large Bosch diamond hole saw mounted in a drill, actively cutting a clean hole through a porcelain tile during a wet-cutting process.
Bosch HDG7 7-Piece Diamond Hole Saw Set with Vacuum Brazing Technology for Porcelain Granite Tile
BOSCH

Bosch Diamond Hole Saw Set HDG7 7 Piece Porcelain Granite Tile (Vacuum Brazed Fast Cutting Masonry Tool Case)

In stock
SKU: HDG7
$135.49 USD
$220.69 USD Sale $135.49 USD

Description

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Bosch HDG7 7-Piece Vacuum-Brazed Diamond Hole Saw Set for Porcelain and Tile

The Bosch HDG7 7-Piece Vacuum-Brazed Diamond Hole Saw Set drills clean, crack-free core holes through hard porcelain tile, granite countertops, marble slabs, and dense masonry. Engineered with high-density diamond grit vacuum-brazed directly to the cutting edge and an innovative spring-loaded AutoStart pilot bit, this professional diamond hole saw kit prevents bit-walking on smooth surfaces during wet drilling operations. Featuring a Quick-Change universal mandrel system for rapid accessory swaps and six versatile hole cutter sizes ranging from 3/4-inch to 2-1/2 inches, this tile coring kit provides plumbers, tilers, and remodelers with precise, high-speed material penetration.

Best Used For:

  • Porcelain Tile & Granite Countertop Coring: Drilling clean holes for plumbing lines, shower valves, and sink drains in hard tile.
  • Marble & Slate Vanity Cutouts: Slicing through brittle natural stone surfaces without chipping or thermal cracking.
  • Masonry & Hard Stone Fastener Holes: Creating anchor and conduit passages through dense stone and ceramic tile installations.

Key Performance & Safety Features

  • Vacuum-Brazed Diamond Grit: Industrial diamonds are permanently bonded to the rim for exceptionally fast cutting speeds and extended bit life.
  • AutoStart Spring-Loaded Pilot Bit: Centers the hole cutter securely on smooth surfaces to eliminate dangerous bit skating and surface scratching.
  • Wet Cutting Thermal Management: Segmented tooth channels optimize water cooling flow to prevent heat fractures in delicate porcelain.
  • Quick-Change Universal Mandrel: Allows instantaneous tool swaps between different hole saw sizes to maximize jobsite workflow efficiency.
  • Comprehensive 7-Piece Set: Includes six essential hole saw diameters and a heavy-duty protective storage carrying case.

What's Included

  • (1) 3/4-Inch Diamond Hole Saw Cutter
  • (1) 1-Inch Diamond Hole Saw Cutter
  • (1) 1-3/8-Inch Diamond Hole Saw Cutter
  • (1) 1-1/2-Inch Diamond Hole Saw Cutter
  • (1) 2-Inch Diamond Hole Saw Cutter
  • (1) 2-1/2-Inch Diamond Hole Saw Cutter
  • (1) Quick-Change Universal Mandrel with AutoStart Pilot Bit
  • (1) Durable Plastic Protective Carrying Case

Technical Specifications

Specification Detail
Model Number / Part ID HDG7 (Diamond Hole Saw Set)
Total Kit Piece Count 7 Pieces (6 Saws + 1 Mandrel)
Included Saw Diameters 3/4 in, 1 in, 1-3/8 in, 1-1/2 in, 2 in, 2-1/2 in
Cutting Technology Type Vacuum-Brazed Diamond Grit Edge
Centering Pilot System Spring-Loaded AutoStart Pilot Bit
Arbor Mandrel Design Quick-Change Universal Mandrel
Recommended Cutting Mode Wet Drilling Use Only (Continuous Water)
Electrical Safety Requirement GFCI-Protected Drill Power Circuit
Storage Container Type Hard Plastic Carrying Case
Target Trade Application Porcelain, Granite, Marble, Tile Coring
Pro-Tip: Maintain a continuous stream of water over the Bosch diamond hole saw during operation and use light feed pressure; wet cutting prevents diamond overheating and guarantees clean, chip-free holes in porcelain tile.