Three, carbide cutters give even cutting pressure to square up the face of your receiver. Tapered handles let you turn the tool smoothly.
Big Book Catalog, Issue:66, Page:488
New Product Supplement, Issue:564, Page:020
SPECS: Aluminum. Teeth - Approximately 3⁄8" (9.5mm) long, 5⁄32" (4mm) wide. 6¾" (17.1cm) OAL with handle.