diff --git a/src/slic3r/GUI/Gizmos/GLGizmoCut.cpp b/src/slic3r/GUI/Gizmos/GLGizmoCut.cpp
index e98446749..52d710249 100644
--- a/src/slic3r/GUI/Gizmos/GLGizmoCut.cpp
+++ b/src/slic3r/GUI/Gizmos/GLGizmoCut.cpp
@@ -9,6 +9,8 @@
 #include <wx/stattext.h>
 #include <wx/sizer.h>
 
+#include <algorithm>
+
 #include "slic3r/GUI/GUI_App.hpp"
 
 
@@ -189,7 +191,7 @@ void GLGizmoCut::update_max_z(const Selection& selection) const
 void GLGizmoCut::set_cut_z(double cut_z) const
 {
     // Clamp the plane to the object's bounding box
-    m_cut_z = std::max(0.0, std::min(m_max_z, cut_z));
+    m_cut_z = std::clamp(cut_z, 0.0, m_max_z);
 }
 
 void GLGizmoCut::perform_cut(const Selection& selection)
diff --git a/src/slic3r/GUI/Gizmos/GLGizmoCut.hpp b/src/slic3r/GUI/Gizmos/GLGizmoCut.hpp
index 6e5738a42..b6e10861f 100644
--- a/src/slic3r/GUI/Gizmos/GLGizmoCut.hpp
+++ b/src/slic3r/GUI/Gizmos/GLGizmoCut.hpp
@@ -25,6 +25,9 @@ class GLGizmoCut : public GLGizmoBase
 public:
     GLGizmoCut(GLCanvas3D& parent, const std::string& icon_filename, unsigned int sprite_id);
 
+    double get_cut_z() const { return m_cut_z; }
+    void set_cut_z(double cut_z) const;
+
 protected:
     virtual bool on_init();
     virtual void on_load(cereal::BinaryInputArchive& ar) { ar(m_cut_z, m_keep_upper, m_keep_lower, m_rotate_lower); }
@@ -40,7 +43,6 @@ protected:
 
 private:
     void update_max_z(const Selection& selection) const;
-    void set_cut_z(double cut_z) const;
     void perform_cut(const Selection& selection);
     double calc_projection(const Linef3& mouse_ray) const;
 };
diff --git a/src/slic3r/GUI/Gizmos/GLGizmosManager.cpp b/src/slic3r/GUI/Gizmos/GLGizmosManager.cpp
index d830e4f3a..e1b4a97e8 100644
--- a/src/slic3r/GUI/Gizmos/GLGizmosManager.cpp
+++ b/src/slic3r/GUI/Gizmos/GLGizmosManager.cpp
@@ -815,6 +815,22 @@ bool GLGizmosManager::on_key(wxKeyEvent& evt)
             default: { break; }
             }
         }
+        else if (m_current == Cut)
+        {
+            auto do_move = [this, &processed](double delta_z) {
+                GLGizmoCut* cut = dynamic_cast<GLGizmoCut*>(get_current());
+                cut->set_cut_z(delta_z + cut->get_cut_z());
+                m_parent.set_as_dirty();
+                processed = true;
+            };
+
+            switch (keyCode)
+            {
+            case WXK_NUMPAD_UP:   case WXK_UP:   { do_move(1.0); break; }
+            case WXK_NUMPAD_DOWN: case WXK_DOWN: { do_move(-1.0); break; }
+            default: { break; }
+            }
+        }
 
 //        if (processed)
 //            m_parent.set_cursor(GLCanvas3D::Standard);