Bosch HDGM 3-Piece Diamond Hole Saw Set

Bosch HDGM is a three-piece diamond hole saw set with 3/16-inch, 1/4-inch and 1/2-inch saws. The listing describes vacuum-brazed diamond grit and segmented teeth, and specifies wet-sawing machines and a GFCI-protected circuit for use.

At a glance

Vacuum-brazed diamond grit is claimed to support faster cutting and longer life.
Segmented teeth are described as reducing debris and heat build-up.
The listing describes quick material-plug removal and an integral Quick Change adapter.
The product description specifically limits use to machines designed for wet sawing and a GFCI-protected circuit.

Price

$41.64Save 15%

Reference price: ~~$48.99~~

Price checked: Nov 14, 2026

View offer Ahead of Black FridayExplore the selection

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Pros and cons

Pros

Three listed saw sizes cover 3/16-inch, 1/4-inch and 1/2-inch holes.
Diamond grit and the stated porcelain compatibility suit tile-hole drilling needs.
The manufacturer describes a Quick Change system for changing saw sizes.

Technical specifications

8 specifications

Identity
Brand	Bosch
Model	HDGM

Dimensions and installation
Dimensions listed	0.64"L x 3.58"W
Weight listed	9.07 g

Materials and use
Material listed	Diamond
Compatible material	Porcelain
Use condition	For use only with machines designed for wet sawing and on a GFCI-protected circuit.

Set details
Included saw sizes	(1) 3/16 In., (1) 1/4 In., (1) 1/2 In.

What to know before buying

Use only with machines designed for wet sawing and on a GFCI-protected circuit, as the product description specifies.
The listing gives dimensions as 0.64"L x 3.58"W without clarifying which set component or measurement convention they describe. Confirm fit if these dimensions matter.

What’s in the box

1 × 3/16-inch hole sawIncluded
1 × 1/4-inch hole sawIncluded
1 × 1/2-inch hole sawIncluded
Plastic caseCheck selected pack

Check which accessories are included in your selected pack before buying.

Who is it for?

A good fit for

Tile installers or DIYers needing the listed 3/16-inch, 1/4-inch and 1/2-inch hole sizes.
Buyers drilling porcelain with equipment designed for wet sawing and a GFCI-protected circuit.

Less suited to

Anyone who needs a documented dry-sawing application or a hole size outside the three listed sizes.

Bosch HDGM 3-Piece Diamond Hole Saw Set · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.6 / 5 · 64 ratings

5 stars71%71%
4 stars23%23%
3 stars0%0%
2 stars3%3%
1 star3%3%

Customer feedback highlights reported performance and build quality, including a customer describing use on difficult porcelain tile. That feedback is consistent with the listed porcelain compatibility, but it does not establish results for every material or setup. Ratings are mostly in the higher star categories, with a smaller low-star share, so experiences are not uniformly positive.

Positive themes

Customer feedback reports positive impressions of performance and quality.

Frequently asked questions

What sizes are included?

The stated set contents are one 3/16-inch saw, one 1/4-inch saw and one 1/2-inch saw.

Can these be used for dry sawing?

The product description says to use them only with machines designed for wet sawing and on a GFCI-protected circuit.

What materials does the listing identify?

It lists diamond as the material and porcelain as a compatible material. The manufacturer description also mentions porcelain and granite.

Does the set include a case?

The feature listing mentions a plastic case, but the explicit included-components list names only the three saws. Check the selected listing to confirm whether a case is included.