hole punch

1 files changed, 1 insertions, 0 deletions

diff --git a/binding b/binding
index 9bc8d04..8e95259 100644
--- a/binding
+++ b/binding
@@ -2,6 +2,7 @@ Bind using a book ring and a {hole punch | ordinary drill | paper drill}.
 Round book rings may be purchased in large quantities for little money
 from any place that sells office and school supplies.
 Round rings, Slant D rings, and D rings may come in plastic binders.
+A single hole punch is about as expensive as a small bag of book rings.
 Ordinary drills are not cheap, but commonplace in many households.
 Paper drills are neither cheap nor commonplace, but specialized for this task.
 Book rings may sustain hundreds of sheets, depending on their diameter.