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Quick verdict
Choose the Freud 04-100 1/8-Inch Double Flute Straight Bit if you want tiCo carbide is harder and stays sharper longer than standard carbide in straight bit service. Choose the Freud 12-128 1/2-Inch Straight Bit, Eclipse Grind if you'd rather have eclipse grind produces a shearing action that leaves smoother groove walls than a standard grind. Overall we rank the Freud 04-100 1/8-Inch Double Flute Straight Bit higher: #1 versus #3 in our Best Straight Router Bits 2026 list.
Winner overall: Freud 04-100 1/8-Inch Double Flute Straight Bit
Freud 04-100 1/8-Inch Double Flute Straight Bit vs Freud 12-128 1/2-Inch Straight Bit, Eclipse Grind compared
Every difference that matters, in one table.
Keep researching
- Best Straight Router Bits 2026
- Freud 04-100 1/8-Inch Double Flute Straight Bit review
- Freud 12-128 1/2-Inch Straight Bit — Eclipse Grind review
- All woodworking
Bottom line
Choose the Freud 04-100 1/8-Inch Double Flute Straight Bit if you want tiCo carbide is harder and stays sharper longer than standard carbide in straight bit service. Choose the Freud 12-128 1/2-Inch Straight Bit, Eclipse Grind if you'd rather have eclipse grind produces a shearing action that leaves smoother groove walls than a standard grind. Overall we rank the Freud 04-100 1/8-Inch Double Flute Straight Bit higher: #1 versus #3 in our Best Straight Router Bits 2026 list.
Best OverallFreud
TiCo carbide is harder and stays sharper longer than standard carbide in straight bit service
- 1/4-inch cutting diameter
- TiCo carbide
- Two-flute design
- 1/4-inch shank
✓ Pros
- Eclipse grind produces a shearing action that leaves smoother groove walls than a standard grind
- 1/2-inch diameter and shank for maximum stability in production dado and groove cutting
- TiCo Hi-Density carbide holds an edge through repeated production cuts
- The professional choice for cabinet dado and groove work
✕ Cons
- Higher price than a basic straight bit
Best PremiumFreud
Eclipse grind produces a shearing action that leaves smoother groove walls than a standard grind
- Eclipse grind geometry
- 1/2-inch diameter
- 1/2-inch shank
- TiCo Hi-Density carbide
✓ Pros
- Eclipse grind produces a shearing action that leaves smoother groove walls than a standard grind
- 1/2-inch diameter and shank for maximum stability in production dado and groove cutting
- TiCo Hi-Density carbide holds an edge through repeated production cuts
- The professional choice for cabinet dado and groove work
✕ Cons
- Higher price than a basic straight bit
FAQ
Common questions
Which is better, the Freud 04-100 1/8-Inch Double Flute Straight Bit or the Freud 12-128 1/2-Inch Straight Bit, Eclipse Grind?
Choose the Freud 04-100 1/8-Inch Double Flute Straight Bit if you want tiCo carbide is harder and stays sharper longer than standard carbide in straight bit service. Choose the Freud 12-128 1/2-Inch Straight Bit, Eclipse Grind if you'd rather have eclipse grind produces a shearing action that leaves smoother groove walls than a standard grind. Overall we rank the Freud 04-100 1/8-Inch Double Flute Straight Bit higher: #1 versus #3 in our Best Straight Router Bits 2026 list.
What is the difference between the Freud 04-100 1/8-Inch Double Flute Straight Bit and the Freud 12-128 1/2-Inch Straight Bit, Eclipse Grind?
The Freud 04-100 1/8-Inch Double Flute Straight Bit stands out because tiCo carbide is harder and stays sharper longer than standard carbide in straight bit service, while the Freud 12-128 1/2-Inch Straight Bit, Eclipse Grind stands out because eclipse grind produces a shearing action that leaves smoother groove walls than a standard grind. The trade-offs differ too: the Freud 04-100 1/8-Inch Double Flute Straight Bit's ma in caveat is that 1/4-inch diameter only -- one size, and the Freud 12-128 1/2-Inch Straight Bit, Eclipse Grind's is that higher price than a basic straight bit.
Is the Freud 04-100 1/8-Inch Double Flute Straight Bit worth it over the Freud 12-128 1/2-Inch Straight Bit, Eclipse Grind?
For most buyers, yes: it's our #1 pick. Consider the Freud 12-128 1/2-Inch Straight Bit, Eclipse Grind instead if 1/4-inch diameter only -- one size is a deal-breaker for you.
Who should buy the Freud 12-128 1/2-Inch Straight Bit, Eclipse Grind instead of the Freud 04-100 1/8-Inch Double Flute Straight Bit?
The Freud 12-128 1/2-Inch Straight Bit, Eclipse Grind suits buyers who want the best overall package, while the Freud 04-100 1/8-Inch Double Flute Straight Bit is best for buyers who want the best overall package.
Keep researching
Related guides & comparisons
Freud 12-128 1/2-Inch Straight Bit, Eclipse Grind
