Diamond Hole Saw Series Comparison
Drilax makes five series of diamond hole saws. They differ in how the diamond is attached, how deep they cut, what tool they fit and whether they drill wet or dry. Use this page to pick the right one.
| Chrome | Chrome + pilot | Cobalt | Pro | Masonry (Gold) | |
|---|---|---|---|---|---|
| Diamond | Triple-layer electroplated | Triple-layer coating | Vacuum brazed | Vacuum brazed | Sintered teeth, laser-welded |
| Sizes | 1/4" to 8" | 1" to 4-1/2" | 1" to 4" | 1" to 4" | 1" to 4-1/2" |
| Fits | Drill (3/8" shank) | Drill (3/8" triangular shank) | Drill (3/8" triangular shank) | Angle grinder (5/8"-11 thread); drill with adapter | Drill (3/8" triangular shank) |
| Depth of cut | 1-1/8" (most sizes) | 1-3/8" | 1-3/8" | 1-3/8" | 2" |
| Wet or dry | Wet only | Wet | Wet | Dry or wet | Dry (can also be used with water) |
| Pilot bit | No | Yes, removable | No | No | No |
| Best for | Tile, porcelain, glass, general stone | Tile and stone when you need an exact start | Granite, quartz, hard porcelain, 3cm countertops | Concrete, masonry and stone with a grinder | Concrete, brick, block, stucco with a drill |
Which series should I buy?
- Ceramic or porcelain tile, glass, bottles, planters: Chrome Series. Want help starting on slick tile? Choose Chrome with Pilot Bit – but take the pilot out for glass, as it can crack it.
- Granite or quartz countertops, hard porcelain: Cobalt Series – vacuum brazed and 1-3/8" deep, enough for a 3cm slab. For faucet holes, see the countertop kits with a water delivery guide.
- Concrete, brick, block or stucco with a regular drill: Masonry Series (Gold) – 2" cut depth, drills dry. Do not use hammer mode.
- Concrete, masonry or stone with an angle grinder: Pro Series – 5/8"-11 thread, dry or wet. Add a drill adapter to use it on a drill.
- Hammer drill (SDS Plus / SDS Max): the carbide-tipped SDS core bits in the concrete collection.
Good to know
- Electroplated diamond (Chrome) gives a smooth, clean cut in tile and glass. Vacuum brazed diamond (Cobalt, Pro) is bonded more strongly, for hard stone and longer life. Sintered diamond teeth (Masonry) are made for abrasive concrete and brick.
- Bits without a pilot start best at an angle: tilt the drill, cut a small crescent, then bring the bit upright. A drill guide makes this easier.
- Chrome 3", 4" and 4-1/2" kits and Masonry 3", 4" and 4-1/2" hole saws include a drill guide.
- Chrome is not recommended for concrete.
Next: find your hole size in the hole saw size guide.