Diamond Core Bit Size Chart
Quick takeaway: Select a diameter below to filter verified diamond core bits with matching spindle thread and bond specifications in the Core Bit Finder.
Database-supported sizes
1" (5) 1.25" (3) 1.5" (9) 2" (29) 2.5" (6) 3" (29) 3.5" (2) 4" (28) 5" (14) 6" (23) 8" (13) 10" (4) 12"+ (4)
Sample variants (first 12 by diameter)
| Bit | Ø | Thread | Depth | Max RPM |
|---|---|---|---|---|
| Hilti SPX-T Dry Tile & Anchor Core Bits 1/4″ | 0.25" | 5/8"-11 UNC / M14 | 1.5 | Unknown / Not specified by manufacturer |
| Hilti SPX-T Dry Tile & Anchor Core Bits 5/16″ | 0.3125" | 5/8"-11 UNC / M14 | 1.5 | Unknown / Not specified by manufacturer |
| Hilti SPX-T Dry Tile & Anchor Core Bits 3/8″ | 0.375" | 5/8"-11 UNC / M14 | 1.5 | Unknown / Not specified by manufacturer |
| Hilti SPX-L Heavy Rebar Wet Core Bits 1/2″ | 0.5" | Hilti BL Quick-Release / 1-1/4"-7 UNC | 17.7 | Unknown / Not specified by manufacturer |
| Hilti SPX-T Dry Tile & Anchor Core Bits 1/2″ | 0.5" | 5/8"-11 UNC / M14 | 1.5 | Unknown / Not specified by manufacturer |
| 48-17-5006 | 0.625" | 1-1/4"-7 UNC Female | 14 | 4210 |
| Hilti SPX-T Dry Tile & Anchor Core Bits 3/4″ | 0.75" | 5/8"-11 UNC / M14 | 1.5 | Unknown / Not specified by manufacturer |
| 48-17-5007 | 0.75" | 1-1/4"-7 UNC Female | 14 | 3510 |
| 48-17-5009 | 0.875" | 1-1/4"-7 UNC Female | 14 | 3010 |
| BR-DRY-1 | 1" | 5/8"-11 UNC | 10 | Unknown / Not specified by manufacturer |
| BR-WET-1 | 1" | 1-1/4"-7 UNC Female | 14.5 | Unknown / Not specified by manufacturer |
| Hilti SPX-L Heavy Rebar Wet Core Bits 1″ | 1" | Hilti BL Quick-Release / 1-1/4"-7 UNC | 17.7 | Unknown / Not specified by manufacturer |
Related
Sources and methodology
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Products for this page
Diamond core bit
VEVOR Wet Core Bit
5" shown · wet
Value wet coring 5" × 14" on handheld or stand drills with 1-1/4"-7 UNC.
Diamond core bit
Husqvarna DRI-8
2" shown · dry
Pro dry coring 2" × 10" on documented Husqvarna drill motors.
Diamond core bit
Milwaukee Diamond Ultra Dry
4" shown · dry
Dry diamond coring in concrete, brick, and block, RPM calculator source row.
Diamond core bit
Milwaukee Diamond Ultra Wet
4" shown · wet
Wet diamond coring in concrete/rebar-oriented work at manufacturer max RPM 660.
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