diff --git a/Cargo.lock b/Cargo.lock
index 66bd86951..4a11f3baf 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -61,6 +61,7 @@ version = "0.1.0"
 dependencies = [
  "cuboid",
  "fj",
+ "holes",
  "spacer",
  "split",
  "star",
diff --git a/models/all/Cargo.toml b/models/all/Cargo.toml
index 0d758a141..8963edec7 100644
--- a/models/all/Cargo.toml
+++ b/models/all/Cargo.toml
@@ -9,6 +9,9 @@ path = "../../crates/fj"
 [dependencies.cuboid]
 path = "../cuboid"
 
+[dependencies.holes]
+path = "../holes"
+
 [dependencies.spacer]
 path = "../spacer"
 
diff --git a/models/all/src/lib.rs b/models/all/src/lib.rs
index 48d52156e..784a9b5cf 100644
--- a/models/all/src/lib.rs
+++ b/models/all/src/lib.rs
@@ -18,7 +18,7 @@ pub fn model(services: &mut Services) -> Handle<Solid> {
     let axis = Vector::from([1., 1., 1.]).normalize();
     let angle_rad = Scalar::PI / 6.;
 
-    let cuboid = cuboid::model(1., 2., 3., services)
+    let cuboid = cuboid::model([1., 2., 3.], services)
         .translate(offset * 1., services)
         .rotate(axis * angle_rad * 1., services);
     let spacer = spacer::model(2., 1., 1., services)
@@ -27,13 +27,17 @@ pub fn model(services: &mut Services) -> Handle<Solid> {
     let star = star::model(5, 2., 1., 1., services)
         .translate(offset * 3., services)
         .rotate(axis * angle_rad * 3., services);
-    let split = split::model(1., 0.5, services)
+    let split = split::model(1., 0.2, services)
         .translate(offset * 4., services)
         .rotate(axis * angle_rad * 4., services);
+    let holes = holes::model(0.5, services)
+        .translate(offset * 5., services)
+        .rotate(axis * angle_rad * 5., services);
 
     cuboid
         .merge(&spacer)
         .merge(&star)
         .merge(&split)
+        .merge(&holes)
         .insert(services)
 }
diff --git a/models/cuboid/src/lib.rs b/models/cuboid/src/lib.rs
index eebe7781e..8faba1bbe 100644
--- a/models/cuboid/src/lib.rs
+++ b/models/cuboid/src/lib.rs
@@ -10,10 +10,15 @@ use fj::{
         services::Services,
         storage::Handle,
     },
-    math::Vector,
+    math::{Scalar, Vector},
 };
 
-pub fn model(x: f64, y: f64, z: f64, services: &mut Services) -> Handle<Solid> {
+pub fn model(
+    size: impl Into<Vector<3>>,
+    services: &mut Services,
+) -> Handle<Solid> {
+    let [x, y, z] = size.into().components;
+
     let sketch = Sketch::empty().add_region(
         Region::polygon(
             [
@@ -28,7 +33,7 @@ pub fn model(x: f64, y: f64, z: f64, services: &mut Services) -> Handle<Solid> {
     );
 
     let surface = services.objects.surfaces.xy_plane();
-    let path = Vector::from([0., 0., z]);
+    let path = Vector::from([Scalar::ZERO, Scalar::ZERO, z]);
     sketch
         .sweep_sketch(surface, path, services)
         .insert(services)
diff --git a/models/cuboid/src/main.rs b/models/cuboid/src/main.rs
index 23edaa890..3a3836caf 100644
--- a/models/cuboid/src/main.rs
+++ b/models/cuboid/src/main.rs
@@ -2,7 +2,7 @@ use fj::{core::services::Services, handle_model};
 
 fn main() -> fj::Result {
     let mut services = Services::new();
-    let model = cuboid::model(3., 2., 1., &mut services);
+    let model = cuboid::model([3., 2., 1.], &mut services);
     handle_model(model, services)?;
     Ok(())
 }
diff --git a/models/holes/src/lib.rs b/models/holes/src/lib.rs
index c896926c4..7867b17c7 100644
--- a/models/holes/src/lib.rs
+++ b/models/holes/src/lib.rs
@@ -1,28 +1,35 @@
-use fj::core::{
-    objects::Solid,
-    operations::{holes::AddHole, insert::Insert, update::UpdateSolid},
-    services::Services,
-    storage::Handle,
+use fj::{
+    core::{
+        objects::Solid,
+        operations::{holes::AddHole, insert::Insert, update::UpdateSolid},
+        services::Services,
+        storage::Handle,
+    },
+    math::Scalar,
 };
 
-pub fn model(services: &mut Services) -> Handle<Solid> {
-    let cuboid = cuboid::model(1., 1., 1., services);
+pub fn model(
+    radius: impl Into<Scalar>,
+    services: &mut Services,
+) -> Handle<Solid> {
+    let radius = radius.into();
 
-    let shell = cuboid.shells().first();
-    let bottom_face = shell.faces().first();
-
-    let hole_position = [0., 0.];
-    let hole_radius = 0.25;
-    let hole_path = [0., 0., 0.5];
+    let size = radius * 4.;
+    let cuboid = cuboid::model([size, size, size], services);
 
     cuboid
-        .update_shell(shell, |shell| {
+        .update_shell(cuboid.shells().first(), |shell| {
+            let bottom_face = shell.faces().first();
+
+            let hole_position = [0., 0.];
+            let depth = size / 2.;
+
             shell
                 .add_blind_hole(
                     bottom_face,
                     hole_position,
-                    hole_radius,
-                    hole_path,
+                    radius,
+                    [Scalar::ZERO, Scalar::ZERO, depth],
                     services,
                 )
                 .insert(services)
diff --git a/models/holes/src/main.rs b/models/holes/src/main.rs
index 9091143ec..6165441dd 100644
--- a/models/holes/src/main.rs
+++ b/models/holes/src/main.rs
@@ -2,7 +2,7 @@ use fj::{core::services::Services, handle_model};
 
 fn main() -> fj::Result {
     let mut services = Services::new();
-    let model = holes::model(&mut services);
+    let model = holes::model(0.25, &mut services);
     handle_model(model, services)?;
     Ok(())
 }