Drillco annular cutter details
Drillco 2‑5/16 Annular Cutter 1" DOC Nitro (91N320)
Drillco 91N320 2‑5/16" Annular Cutter – 1" Depth of Cut, Nitro is engineered for high-efficiency broach cutting of large diameter holes in challenging materials. Constructed from Nitro-treated cobalt, this cutter delivers enhanced hardness, faster penetration, and reduced thrust for precise and reliable performance. It removes only the periphery of the hole, ejecting the slug cleanly, making it ideal for professional and industrial applications requiring speed, accuracy, and durability.
Nitro-treated cobalt for superior wear resistance and long-lasting performance
1" depth of cut (DOC) suitable for medium-to-large holes
Center cutting tip for plunging, pocketing, and holemaking
Two flutes for efficient chip removal and smoother cutting
Bright finish for enhanced lubricity and cutting efficiency
Round shank with 1 flat for secure attachment
Produces large diameter holes quickly with less energy and effort
Minimizes material waste by cutting only the hole periphery
Precision cutting for plunging, pocketing, and contouring
Durable and long-lasting for repeated industrial use
Approximately 10% faster than standard HSS cutters due to cobalt construction
Technical Specifications:
Type: Annular Cutter – Nitro
Depth of Cut: 1"
Material: Cobalt, Nitro-Treated
Shank: Round with 1 flat for secure attachment
Application: Broach cutting, slug ejection, plunging, pocketing, and holemaking
Product identification
- Brand: Drillco
- Model / MPN: 91N320
