Description
Drillco 91N224 1‑3/8″ Annular Cutter – 1″ Depth of Cut, Nitro is engineered for high-efficiency broach cutting of large diameter holes in tough materials. Its Nitro-treated cobalt construction delivers superior hardness, faster penetration, and reduced thrust, ensuring precise and reliable performance. The cutter removes only the periphery of the hole, ejecting the slug cleanly after drilling, making it ideal for professional and industrial applications requiring speed and accuracy.
Features:
- Nitro-treated cobalt for enhanced wear resistance and long-lasting durability
- 1″ depth of cut (DOC) suitable for medium-to-large holes
- Ball nose for profiling, grooving with radii, and contouring
- Two flutes for efficient chip removal
- Bright finish for smooth cutting and improved lubricity
- Round shank with 1 flat for secure attachment
- Made in USA
Benefits:
- Efficiently produces large diameter holes with less energy and effort
- Minimizes material waste by removing only the periphery of the hole
- Ensures precision for profiling, contouring, and repeatable cuts
- Durable and long-lasting for repeated industrial use
Technical Specifications:
- Model: 91N224
- Type: Annular Cutter – Nitro
- Size: 1‑3/8″
- Depth of Cut: 1″
- Material: Cobalt, Nitro-Treated
- Shank: Round with 1 flat for secure attachment
- Application: Broach cutting, slug ejection, profiling, grooving, and contouring






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