diff --git a/corners.c b/corners.c
index dd22d28..a6e344d 100644
--- a/corners.c
+++ b/corners.c
@@ -261,7 +261,7 @@ main(
 	const double thickness = 3;
 	const double inset_dist = 5;
 	const double hole_dist = 5;
-	const double hole_rad = 1.25;
+	const double hole_rad = 1.5;
 
 	int * const face_used
 		= calloc(sizeof(*face_used), stl->num_face);
diff --git a/faces.c b/faces.c
index 6665a03..b5c838c 100644
--- a/faces.c
+++ b/faces.c
@@ -64,7 +64,7 @@ main(void)
 	if (!stl)
 		return EXIT_FAILURE;
 	const double inset_distance = 5;
-	const double hole_radius = 1.5;
+	const double hole_radius = 1.15;
 
 	int * const face_used = calloc(sizeof(*face_used), stl->num_face);