Best Mortar Rake Bits for Angle Grinders: Top Picks for Brick, Stone, and Masonry
Choosing the right mortar rake bit for an angle grinder can boost efficiency when removing old mortar, repointing joints, or clearing damaged brickwork. The right diamond or carbide-tipped bit delivers faster stock removal, longer life, and cleaner joints. Below, five top picks based on performance, durability, and versatility help you select a reliable option for masonry projects across brick, stone, and concrete.
| Product | Brand | Thread | Length | Grit/Tip |
|---|---|---|---|---|
| Diamond Mortar Raking Bit (BRSCHNITT) 5/8-11 | BRSCHNITT | 5/8-11 | 55 mm total | #40/50 Diamond |
| KURSTOL Diamond Mortar Raking Bit 5/16″ x 4″ | KURSTOL | 58-11 | 4 inches | Grit 40/45 |
| HIGHDRIL Diamond Mortar Raking Bit 5/16″ x 1″ | HIGHDRIL | 5/8-11 | 1 inch | Grit 45/50 |
| SHDIATOOL Diamond Mortar Raking Bit (2 Pack) 5/16″ x 4″ & 5/16″ x 1″ | SHDIATOOL | 5/8-11 | 4″ & 1″ | Grit 40/45 |
| BRSCHNITT Diamond Mortar Raking Bit with Carbide Tip 8mm x 121mm | BRSCHNITT | 5/8-11 | 168 mm total | Carbide Tipped; #40/45 |
Note: The following selections emphasize a mix of short and long reach, single- and dual-length options, and both vacuum-brazed diamond and carbide-tipped designs to cover a variety of mortar removal and tuck-pointing tasks.
Diamond Mortar Raking Bit — BRSCHNITT (5/8-11)
- Diameter: 5/16 Inch; Working length: 1 Inch
- Total length: 55 mm; Thread: 5/8-11
- Grit: Diamond #40/50; Vacuum brazed for durability
- Applications: Mortar raking, brick removal, preparation for repointing, removal of damaged bricks or natural stone
- Performance: Higher diamond exposure improves efficiency and tool life
KURSTOL Diamond Mortar Raking Bit — 5/16″ x 4″
- Diameter: 5/16″; Length: 4″ with 58-11 thread
- Grit: 40/45; Vacuum brazed for faster grinding and longer life
- Ideal for intricate work and repointing prep; longer bit reaches behind pipes
- Includes: 1 piece diamond glitter bit
HIGHDRIL Diamond Mortar Raking Bit — 5/16″ x 1″
- Diameter: 8 mm (5/16″); Working length: 25 mm (1″)
- Grit: 45/50; Thread: 5/8-11
- Features vacuum brazed technology for longer life and faster stock removal
- Versatile for prep work and behind-obstruction removal
SHDIATOOL Diamond Mortar Raking Bit — 5/16″ x 4″
- Two-piece set: 1″ work length and 4″ work length
- Diameter: 5/16″; Thread: 5/8-11
- Grit: 40/45; Enables precise mortar raking and brick removal
- High-quality diamonds with full exposure for sharpness and life
BRSCHNITT Diamond Bit with Carbide Tip — 8mm x 121mm
- Diameter: 8 mm; Working length: 121 mm; Total length: 168 mm
- Thread: 5/8-11; Carbide tipped; Grit: #40/45
- Application: Mortar raking, brick removal, repointing prep; precise 2-in-1 carbide and brazed design
- Longer life and faster removal with carbide-tipped performance
Buying Guide
Key purchase considerations help align tool choice with project goals and equipment constraints. When selecting a mortar rake bit for an angle grinder, consider the following perspectives:
- Bit diameter and working length: Smaller bits (8 mm, 5/16″) are precise for intricate joints, while longer bits (4″ or more) improve reach behind fixtures or thick brickwork.
- Thread compatibility: Most bits use 5/8-11 threads. Confirm your grinder spindle accepts this standard; some models may require adapters.
- Diamond vs carbide: Vacuum-brazed diamonds excel in fast stock removal and durability on hard materials; carbide-tipped designs provide precise cuts and extended life in mixed substrates.
- Grit and cutting edge exposure: Finer grit (40/45) is better for detail work; higher exposure increases material removal but may wear faster on delicate brick.
- Application scope: Choose bits with versatility for mortar raking, brick removal, and prep work for repointing, while considering potential behind-wall clearance needs.
- Durability and vibration: Vacuum brazing minimizes grain pull-out and reduces chatter; look for well-supported bodies to minimize vibrations during heavy cuts.
- Price vs. life expectancy: Higher upfront cost can yield longer tool life; balance project frequency with expected tool lifespan.
Additional considerations include compatibility with dust control methods, ease of replacement, and the availability of multi-pack options for value and variety. For complex masonry projects, having a mix of short and long reach bits can reduce tool changes and improve efficiency.