IRWIN 5-Piece Countersink Drill Bit Set vs Diamond Beveling Chamfer Bits, 35mm, 5/8-11 thread (2pc)
Overall winner: IRWIN 5-Piece Countersink Drill Bit Set
Key Differences
DT-DIATOOL A is a diamond beveling/chamfer bit set focused on tile beveling with durable, quality construction and a lower listed price; IRWIN B is a multi-piece HSS countersink drill bit set with precision-ground 82° tips and a black oxide finish for corrosion resistance. Pick A if you need diamond beveling bits for tile work and value durability at a more affordable price point; pick B if you need a broader HSS countersink set with precision tips and higher aggregate user ratings
IRWIN 5-Piece Countersink Drill Bit Set
Precision ground 82 tip countersinks for metals, wood, and plastic. Industrial-grade high speed steel with black oxide finish for durability and corrosion resistance. Customer noted good value, sharp edges, and organized storage case
Pros
- precision ground 82 tip
- industrial-grade high speed steel
- black oxide finish for corrosion resistance
- five-flute design reduces vibration
Cons
- reported chatter during use
Diamond Beveling Chamfer Bits, 35mm, 5/8-11 thread (2pc)
Diamond beveling bits for enlarging and shaping existing holes in granite, marble, porcelain tiles. Includes 2 pieces, 35mm diameter, 53° top angle, 45mm total length. Customers note consistent bevels, quality and durability, with some fit issues with grinders
Pros
- 2-piece set
- 35mm diameter for enlarging holes
- 53-degree top bevel
- durable material
Cons
- fit compatibility issues with some grinders
Head-to-Head
| Criteria | Winner |
|---|---|
| Price | DT-DIATOOL |
| Durability | DT-DIATOOL |
| Versatility | Tie |
| User Reviews | IRWIN |