diff --git a/src/main/java/com/raoulvdberge/refinedstorage/block/ConstructorBlock.java b/src/main/java/com/raoulvdberge/refinedstorage/block/ConstructorBlock.java
index 0a92dbae9..144899761 100644
--- a/src/main/java/com/raoulvdberge/refinedstorage/block/ConstructorBlock.java
+++ b/src/main/java/com/raoulvdberge/refinedstorage/block/ConstructorBlock.java
@@ -5,6 +5,7 @@ import com.raoulvdberge.refinedstorage.container.ConstructorContainer;
 import com.raoulvdberge.refinedstorage.container.factory.PositionalTileContainerProvider;
 import com.raoulvdberge.refinedstorage.tile.ConstructorTile;
 import com.raoulvdberge.refinedstorage.util.BlockUtils;
+import com.raoulvdberge.refinedstorage.util.CollisionUtils;
 import com.raoulvdberge.refinedstorage.util.NetworkUtils;
 import net.minecraft.block.BlockState;
 import net.minecraft.entity.player.PlayerEntity;
@@ -54,41 +55,45 @@ public class ConstructorBlock extends CableBlock {
     public VoxelShape getShape(BlockState state, IBlockReader world, BlockPos pos, ISelectionContext ctx) {
         VoxelShape shape = super.getShape(state, world, pos, ctx);
 
-        Direction direction = state.get(getDirection().getProperty());
-
-        if (direction == Direction.NORTH) {
-            shape = VoxelShapes.or(shape, HEAD_NORTH);
-        }
-
-        if (direction == Direction.EAST) {
-            shape = VoxelShapes.or(shape, HEAD_EAST);
-        }
-
-        if (direction == Direction.SOUTH) {
-            shape = VoxelShapes.or(shape, HEAD_SOUTH);
-        }
-
-        if (direction == Direction.WEST) {
-            shape = VoxelShapes.or(shape, HEAD_WEST);
-        }
-
-        if (direction == Direction.UP) {
-            shape = VoxelShapes.or(shape, HEAD_UP);
-        }
-
-        if (direction == Direction.DOWN) {
-            shape = VoxelShapes.or(shape, HEAD_DOWN);
-        }
+        shape = VoxelShapes.or(shape, getHeadShape(state));
 
         return shape;
     }
 
+    private VoxelShape getHeadShape(BlockState state) {
+        Direction direction = state.get(getDirection().getProperty());
 
+        if (direction == Direction.NORTH) {
+            return HEAD_NORTH;
+        }
+
+        if (direction == Direction.EAST) {
+            return HEAD_EAST;
+        }
+
+        if (direction == Direction.SOUTH) {
+            return HEAD_SOUTH;
+        }
+
+        if (direction == Direction.WEST) {
+            return HEAD_WEST;
+        }
+
+        if (direction == Direction.UP) {
+            return HEAD_UP;
+        }
+
+        if (direction == Direction.DOWN) {
+            return HEAD_DOWN;
+        }
+
+        return VoxelShapes.empty();
+    }
 
     @Override
     @SuppressWarnings("deprecation")
-    public ActionResultType onBlockActivated(BlockState state, World world, BlockPos pos, PlayerEntity player, Hand handIn, BlockRayTraceResult hit) {
-        if (!world.isRemote) {
+    public ActionResultType onBlockActivated(BlockState state, World world, BlockPos pos, PlayerEntity player, Hand hand, BlockRayTraceResult hit) {
+        if (!world.isRemote && CollisionUtils.isInBounds(getHeadShape(state), pos, hit.getHitVec())) {
             return NetworkUtils.attemptModify(world, pos, hit.getFace(), player, () -> NetworkHooks.openGui(
                 (ServerPlayerEntity) player,
                 new PositionalTileContainerProvider<ConstructorTile>(
diff --git a/src/main/java/com/raoulvdberge/refinedstorage/block/DestructorBlock.java b/src/main/java/com/raoulvdberge/refinedstorage/block/DestructorBlock.java
index eb658ffe5..b3da5e29d 100644
--- a/src/main/java/com/raoulvdberge/refinedstorage/block/DestructorBlock.java
+++ b/src/main/java/com/raoulvdberge/refinedstorage/block/DestructorBlock.java
@@ -5,6 +5,7 @@ import com.raoulvdberge.refinedstorage.container.DestructorContainer;
 import com.raoulvdberge.refinedstorage.container.factory.PositionalTileContainerProvider;
 import com.raoulvdberge.refinedstorage.tile.DestructorTile;
 import com.raoulvdberge.refinedstorage.util.BlockUtils;
+import com.raoulvdberge.refinedstorage.util.CollisionUtils;
 import com.raoulvdberge.refinedstorage.util.NetworkUtils;
 import net.minecraft.block.BlockState;
 import net.minecraft.entity.player.PlayerEntity;
@@ -54,39 +55,45 @@ public class DestructorBlock extends CableBlock {
     public VoxelShape getShape(BlockState state, IBlockReader world, BlockPos pos, ISelectionContext ctx) {
         VoxelShape shape = super.getShape(state, world, pos, ctx);
 
+        shape = VoxelShapes.or(shape, getHeadShape(state));
+
+        return shape;
+    }
+
+    private VoxelShape getHeadShape(BlockState state) {
         Direction direction = state.get(getDirection().getProperty());
 
         if (direction == Direction.NORTH) {
-            shape = VoxelShapes.or(shape, HEAD_NORTH);
+            return HEAD_NORTH;
         }
 
         if (direction == Direction.EAST) {
-            shape = VoxelShapes.or(shape, HEAD_EAST);
+            return HEAD_EAST;
         }
 
         if (direction == Direction.SOUTH) {
-            shape = VoxelShapes.or(shape, HEAD_SOUTH);
+            return HEAD_SOUTH;
         }
 
         if (direction == Direction.WEST) {
-            shape = VoxelShapes.or(shape, HEAD_WEST);
+            return HEAD_WEST;
         }
 
         if (direction == Direction.UP) {
-            shape = VoxelShapes.or(shape, HEAD_UP);
+            return HEAD_UP;
         }
 
         if (direction == Direction.DOWN) {
-            shape = VoxelShapes.or(shape, HEAD_DOWN);
+            return HEAD_DOWN;
         }
 
-        return shape;
+        return VoxelShapes.empty();
     }
 
     @Override
     @SuppressWarnings("deprecation")
     public ActionResultType onBlockActivated(BlockState state, World world, BlockPos pos, PlayerEntity player, Hand handIn, BlockRayTraceResult hit) {
-        if (!world.isRemote) {
+        if (!world.isRemote && CollisionUtils.isInBounds(getHeadShape(state), pos, hit.getHitVec())) {
             return NetworkUtils.attemptModify(world, pos, hit.getFace(), player, () -> NetworkHooks.openGui(
                 (ServerPlayerEntity) player,
                 new PositionalTileContainerProvider<DestructorTile>(
diff --git a/src/main/java/com/raoulvdberge/refinedstorage/block/ExporterBlock.java b/src/main/java/com/raoulvdberge/refinedstorage/block/ExporterBlock.java
index b5fc7697a..522fb5f98 100644
--- a/src/main/java/com/raoulvdberge/refinedstorage/block/ExporterBlock.java
+++ b/src/main/java/com/raoulvdberge/refinedstorage/block/ExporterBlock.java
@@ -5,6 +5,7 @@ import com.raoulvdberge.refinedstorage.container.ExporterContainer;
 import com.raoulvdberge.refinedstorage.container.factory.PositionalTileContainerProvider;
 import com.raoulvdberge.refinedstorage.tile.ExporterTile;
 import com.raoulvdberge.refinedstorage.util.BlockUtils;
+import com.raoulvdberge.refinedstorage.util.CollisionUtils;
 import com.raoulvdberge.refinedstorage.util.NetworkUtils;
 import net.minecraft.block.BlockState;
 import net.minecraft.entity.player.PlayerEntity;
@@ -71,33 +72,39 @@ public class ExporterBlock extends CableBlock {
     public VoxelShape getShape(BlockState state, IBlockReader world, BlockPos pos, ISelectionContext ctx) {
         VoxelShape shape = super.getShape(state, world, pos, ctx);
 
+        shape = VoxelShapes.or(shape, getLineShape(state));
+
+        return shape;
+    }
+
+    private VoxelShape getLineShape(BlockState state) {
         Direction direction = state.get(getDirection().getProperty());
 
         if (direction == Direction.NORTH) {
-            shape = VoxelShapes.or(shape, LINE_NORTH);
+            return LINE_NORTH;
         }
 
         if (direction == Direction.EAST) {
-            shape = VoxelShapes.or(shape, LINE_EAST);
+            return LINE_EAST;
         }
 
         if (direction == Direction.SOUTH) {
-            shape = VoxelShapes.or(shape, LINE_SOUTH);
+            return LINE_SOUTH;
         }
 
         if (direction == Direction.WEST) {
-            shape = VoxelShapes.or(shape, LINE_WEST);
+            return LINE_WEST;
         }
 
         if (direction == Direction.UP) {
-            shape = VoxelShapes.or(shape, LINE_UP);
+            return LINE_UP;
         }
 
         if (direction == Direction.DOWN) {
-            shape = VoxelShapes.or(shape, LINE_DOWN);
+            return LINE_DOWN;
         }
 
-        return shape;
+        return VoxelShapes.empty();
     }
 
     @Nullable
@@ -108,8 +115,8 @@ public class ExporterBlock extends CableBlock {
 
     @Override
     @SuppressWarnings("deprecation")
-    public ActionResultType onBlockActivated(BlockState state, World world, BlockPos pos, PlayerEntity player, Hand handIn, BlockRayTraceResult hit) {
-        if (!world.isRemote) {
+    public ActionResultType onBlockActivated(BlockState state, World world, BlockPos pos, PlayerEntity player, Hand hand, BlockRayTraceResult hit) {
+        if (!world.isRemote && CollisionUtils.isInBounds(getLineShape(state), pos, hit.getHitVec())) {
             return NetworkUtils.attemptModify(world, pos, hit.getFace(), player, () -> NetworkHooks.openGui(
                 (ServerPlayerEntity) player,
                 new PositionalTileContainerProvider<ExporterTile>(
diff --git a/src/main/java/com/raoulvdberge/refinedstorage/block/ExternalStorageBlock.java b/src/main/java/com/raoulvdberge/refinedstorage/block/ExternalStorageBlock.java
index f7bfaf922..781025837 100644
--- a/src/main/java/com/raoulvdberge/refinedstorage/block/ExternalStorageBlock.java
+++ b/src/main/java/com/raoulvdberge/refinedstorage/block/ExternalStorageBlock.java
@@ -7,6 +7,7 @@ import com.raoulvdberge.refinedstorage.container.ExternalStorageContainer;
 import com.raoulvdberge.refinedstorage.container.factory.PositionalTileContainerProvider;
 import com.raoulvdberge.refinedstorage.tile.ExternalStorageTile;
 import com.raoulvdberge.refinedstorage.util.BlockUtils;
+import com.raoulvdberge.refinedstorage.util.CollisionUtils;
 import com.raoulvdberge.refinedstorage.util.NetworkUtils;
 import net.minecraft.block.Block;
 import net.minecraft.block.BlockState;
@@ -51,33 +52,39 @@ public class ExternalStorageBlock extends CableBlock {
     public VoxelShape getShape(BlockState state, IBlockReader world, BlockPos pos, ISelectionContext ctx) {
         VoxelShape shape = super.getShape(state, world, pos, ctx);
 
+        shape = VoxelShapes.or(shape, getHeadShape(state));
+
+        return shape;
+    }
+
+    private VoxelShape getHeadShape(BlockState state) {
         Direction direction = state.get(getDirection().getProperty());
 
         if (direction == Direction.NORTH) {
-            shape = VoxelShapes.or(shape, HEAD_NORTH);
+            return HEAD_NORTH;
         }
 
         if (direction == Direction.EAST) {
-            shape = VoxelShapes.or(shape, HEAD_EAST);
+            return HEAD_EAST;
         }
 
         if (direction == Direction.SOUTH) {
-            shape = VoxelShapes.or(shape, HEAD_SOUTH);
+            return HEAD_SOUTH;
         }
 
         if (direction == Direction.WEST) {
-            shape = VoxelShapes.or(shape, HEAD_WEST);
+            return HEAD_WEST;
         }
 
         if (direction == Direction.UP) {
-            shape = VoxelShapes.or(shape, HEAD_UP);
+            return HEAD_UP;
         }
 
         if (direction == Direction.DOWN) {
-            shape = VoxelShapes.or(shape, HEAD_DOWN);
+            return HEAD_DOWN;
         }
 
-        return shape;
+        return VoxelShapes.empty();
     }
 
     @Nullable
@@ -88,8 +95,8 @@ public class ExternalStorageBlock extends CableBlock {
 
     @Override
     @SuppressWarnings("deprecation")
-    public ActionResultType onBlockActivated(BlockState state, World world, BlockPos pos, PlayerEntity player, Hand handIn, BlockRayTraceResult hit) {
-        if (!world.isRemote) {
+    public ActionResultType onBlockActivated(BlockState state, World world, BlockPos pos, PlayerEntity player, Hand hand, BlockRayTraceResult hit) {
+        if (!world.isRemote && CollisionUtils.isInBounds(getHeadShape(state), pos, hit.getHitVec())) {
             return NetworkUtils.attemptModify(world, pos, hit.getFace(), player, () -> NetworkHooks.openGui(
                 (ServerPlayerEntity) player,
                 new PositionalTileContainerProvider<ExternalStorageTile>(
diff --git a/src/main/java/com/raoulvdberge/refinedstorage/block/ImporterBlock.java b/src/main/java/com/raoulvdberge/refinedstorage/block/ImporterBlock.java
index d5198864c..678130dbf 100644
--- a/src/main/java/com/raoulvdberge/refinedstorage/block/ImporterBlock.java
+++ b/src/main/java/com/raoulvdberge/refinedstorage/block/ImporterBlock.java
@@ -5,6 +5,7 @@ import com.raoulvdberge.refinedstorage.container.ImporterContainer;
 import com.raoulvdberge.refinedstorage.container.factory.PositionalTileContainerProvider;
 import com.raoulvdberge.refinedstorage.tile.ImporterTile;
 import com.raoulvdberge.refinedstorage.util.BlockUtils;
+import com.raoulvdberge.refinedstorage.util.CollisionUtils;
 import com.raoulvdberge.refinedstorage.util.NetworkUtils;
 import net.minecraft.block.BlockState;
 import net.minecraft.entity.player.PlayerEntity;
@@ -71,33 +72,39 @@ public class ImporterBlock extends CableBlock {
     public VoxelShape getShape(BlockState state, IBlockReader world, BlockPos pos, ISelectionContext ctx) {
         VoxelShape shape = super.getShape(state, world, pos, ctx);
 
+        shape = VoxelShapes.or(shape, getLineShape(state));
+
+        return shape;
+    }
+
+    private VoxelShape getLineShape(BlockState state) {
         Direction direction = state.get(getDirection().getProperty());
 
         if (direction == Direction.NORTH) {
-            shape = VoxelShapes.or(shape, LINE_NORTH);
+            return LINE_NORTH;
         }
 
         if (direction == Direction.EAST) {
-            shape = VoxelShapes.or(shape, LINE_EAST);
+            return LINE_EAST;
         }
 
         if (direction == Direction.SOUTH) {
-            shape = VoxelShapes.or(shape, LINE_SOUTH);
+            return LINE_SOUTH;
         }
 
         if (direction == Direction.WEST) {
-            shape = VoxelShapes.or(shape, LINE_WEST);
+            return LINE_WEST;
         }
 
         if (direction == Direction.UP) {
-            shape = VoxelShapes.or(shape, LINE_UP);
+            return LINE_UP;
         }
 
         if (direction == Direction.DOWN) {
-            shape = VoxelShapes.or(shape, LINE_DOWN);
+            return LINE_DOWN;
         }
 
-        return shape;
+        return VoxelShapes.empty();
     }
 
     @Nullable
@@ -108,8 +115,8 @@ public class ImporterBlock extends CableBlock {
 
     @Override
     @SuppressWarnings("deprecation")
-    public ActionResultType onBlockActivated(BlockState state, World world, BlockPos pos, PlayerEntity player, Hand handIn, BlockRayTraceResult hit) {
-        if (!world.isRemote) {
+    public ActionResultType onBlockActivated(BlockState state, World world, BlockPos pos, PlayerEntity player, Hand hand, BlockRayTraceResult hit) {
+        if (!world.isRemote && CollisionUtils.isInBounds(getLineShape(state), pos, hit.getHitVec())) {
             return NetworkUtils.attemptModify(world, pos, hit.getFace(), player, () -> NetworkHooks.openGui(
                 (ServerPlayerEntity) player,
                 new PositionalTileContainerProvider<ImporterTile>(
diff --git a/src/main/java/com/raoulvdberge/refinedstorage/util/CollisionUtils.java b/src/main/java/com/raoulvdberge/refinedstorage/util/CollisionUtils.java
index 67dc5ddd7..a241f25aa 100644
--- a/src/main/java/com/raoulvdberge/refinedstorage/util/CollisionUtils.java
+++ b/src/main/java/com/raoulvdberge/refinedstorage/util/CollisionUtils.java
@@ -1,13 +1,19 @@
 package com.raoulvdberge.refinedstorage.util;
 
 import net.minecraft.util.math.AxisAlignedBB;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.Vec3d;
+import net.minecraft.util.math.shapes.VoxelShape;
 
 public final class CollisionUtils {
-    public static AxisAlignedBB getBounds(int fromX, int fromY, int fromZ, int toX, int toY, int toZ) {
-        return new AxisAlignedBB((float) fromX / 16F, (float) fromY / 16F, (float) fromZ / 16F, (float) toX / 16F, (float) toY / 16F, (float) toZ / 16F);
-    }
+    public static boolean isInBounds(VoxelShape shape, BlockPos pos, Vec3d hit) {
+        AxisAlignedBB aabb = shape.getBoundingBox().offset(pos);
 
-    public static boolean isInBounds(AxisAlignedBB aabb, float hitX, float hitY, float hitZ) {
-        return hitX >= aabb.minX && hitX <= aabb.maxX && hitY >= aabb.minY && hitY <= aabb.maxY && hitZ >= aabb.minZ && hitZ <= aabb.maxZ;
+        return hit.x >= aabb.minX
+            && hit.x <= aabb.maxX
+            && hit.y >= aabb.minY
+            && hit.y <= aabb.maxY
+            && hit.z >= aabb.minZ
+            && hit.z <= aabb.maxZ;
     }
 }