Description

Drillco 91N220 1‑5/16 Annular Cutter 1″ DOC Nitro is a professional-grade broach cutting tool engineered for efficient, precise large-diameter holemaking. Nitro-treated for superior hardness and wear resistance, this cutter removes only the periphery of the hole while ejecting the slug cleanly at the end of the cut. Ideal for metalworkers, fabricators, and industrial applications requiring low-thrust, energy-efficient drilling.

Features:

1‑5/16″ diameter annular cutter with 1″ depth of cut
Nitro-treated cobalt HSS construction for extended durability
Broach cutting design removes only the periphery of the hole
Ejects slug efficiently for clean and precise results
Ball nose for profiling, grooving with radii, and contouring
2 flutes for efficient chip removal
Bright finish for reduced friction and improved cutting performance
Round shank with 1 flat for secure tool attachment
Made in USA

Benefits:

Faster, energy-efficient large-diameter holemaking
Reduced thrust requirements for easier operation
Durable construction ensures consistent performance over time
Versatile ball nose design for contouring and profiling tasks

Technical Specifications:

Model: 91N220
Type: 1‑5/16″ Annular Cutter
Depth of Cut: 1″
Material: Nitro-treated cobalt HSS
Applications: Large-diameter holemaking, broach cutting, profiling, contouring
Shank: Round with 1 flat
Compatible With: Drillco 9100N systems