diff --git a/assets/cubyz/tools/axe.zig.zon b/assets/cubyz/tools/axe.zig.zon
index 96aa3d66..b7f7f8e0 100644
--- a/assets/cubyz/tools/axe.zig.zon
+++ b/assets/cubyz/tools/axe.zig.zon
@@ -26,6 +26,7 @@
 				0x0, 0x0, 0x0, 0x0, 1.0,
 			},
 			.factor = 0.25,
+			.method = .average,
 		},
 		.{
 			.source = .density,
@@ -38,6 +39,7 @@
 				0x0, 0x0, 0x0, 0x0, 0.0,
 			},
 			.factor = 0.4,
+			.method = .average,
 		},
 		.{
 			.source = .hardness,
@@ -50,6 +52,7 @@
 				0x0, 0x0, 0x0, 0x0, 1.0,
 			},
 			.factor = 120,
+			.method = .average,
 		},
 		.{
 			.source = .hardness,
@@ -62,6 +65,7 @@
 				0x0, 0x0, 0x0, 0x0, 0.0,
 			},
 			.factor = 0.3,
+			.method = .average,
 		},
 		.{
 			.source = .elasticity,
@@ -74,6 +78,7 @@
 				0x0, 0x0, 0x0, 0x0, 1.5,
 			},
 			.factor = 120,
+			.method = .average,
 		},
 		.{
 			.source = .elasticity,
@@ -86,6 +91,7 @@
 				0x0, 0x0, 0x0, 0x0, 0.5,
 			},
 			.factor = -1.0,
+			.method = .average,
 		},
 	},
 }
diff --git a/assets/cubyz/tools/pickaxe.zig.zon b/assets/cubyz/tools/pickaxe.zig.zon
index 1e1c61e9..c813cbad 100644
--- a/assets/cubyz/tools/pickaxe.zig.zon
+++ b/assets/cubyz/tools/pickaxe.zig.zon
@@ -26,6 +26,7 @@
 				0x0, 0x0, 0x0, 0x0, 1.0,
 			},
 			.factor = 0.25,
+			.method = .average,
 		},
 		.{
 			.source = .density,
@@ -38,6 +39,7 @@
 				0x0, 0x0, 0x0, 0x0, 0.0,
 			},
 			.factor = 0.8,
+			.method = .average,
 		},
 		.{
 			.source = .hardness,
@@ -50,6 +52,7 @@
 				0x0, 0x0, 0x0, 0x0, 0.5,
 			},
 			.factor = 120,
+			.method = .average,
 		},
 		.{
 			.source = .hardness,
@@ -62,6 +65,7 @@
 				0x0, 0x0, 0x0, 0x0, 0.0,
 			},
 			.factor = 0.7,
+			.method = .average,
 		},
 		.{
 			.source = .elasticity,
@@ -74,6 +78,7 @@
 				0x0, 0x0, 0x0, 0x0, 1.5,
 			},
 			.factor = 120,
+			.method = .average,
 		},
 		.{
 			.source = .elasticity,
@@ -86,6 +91,7 @@
 				0x0, 0x0, 0x0, 0x0, 0.0,
 			},
 			.factor = -1.0,
+			.method = .average,
 		},
 	},
 }
diff --git a/assets/cubyz/tools/shover.zig.zon b/assets/cubyz/tools/shover.zig.zon
index a8e6c1cc..cbfa8be3 100644
--- a/assets/cubyz/tools/shover.zig.zon
+++ b/assets/cubyz/tools/shover.zig.zon
@@ -26,6 +26,7 @@
 				0x0, 0x0, 0x0, 0x0, 1.0,
 			},
 			.factor = 0.25,
+			.method = .average,
 		},
 		.{
 			.source = .density,
@@ -38,6 +39,7 @@
 				0x0, 0x0, 0x0, 0x0, 0.0,
 			},
 			.factor = 0.4,
+			.method = .average,
 		},
 		.{
 			.source = .hardness,
@@ -50,6 +52,7 @@
 				0x0, 0x0, 0x0, 0x0, 1.0,
 			},
 			.factor = 120,
+			.method = .average,
 		},
 		.{
 			.source = .hardness,
@@ -62,6 +65,7 @@
 				0x0, 0x0, 0x0, 0x0, 0.0,
 			},
 			.factor = 0.2,
+			.method = .average,
 		},
 		.{
 			.source = .elasticity,
@@ -74,6 +78,7 @@
 				0x0, 0x0, 0x0, 0x0, 1.0,
 			},
 			.factor = 120,
+			.method = .average,
 		},
 		.{
 			.source = .elasticity,
@@ -86,6 +91,7 @@
 				0x0, 0x0, 0x0, 0x0, 0.0,
 			},
 			.factor = -1.0,
+			.method = .average,
 		},
 	},
 }
diff --git a/assets/cubyz/tools/sickle.zig.zon b/assets/cubyz/tools/sickle.zig.zon
index 62fbc5e5..7eb8a4e7 100644
--- a/assets/cubyz/tools/sickle.zig.zon
+++ b/assets/cubyz/tools/sickle.zig.zon
@@ -26,6 +26,7 @@
 				0x0, 0x0, 0x0, 0x0, 1.0,
 			},
 			.factor = 0.25,
+			.method = .average,
 		},
 		.{
 			.source = .density,
@@ -38,6 +39,7 @@
 				0x0, 0x0, 0x0, 0x0, 0.0,
 			},
 			.factor = 0.8,
+			.method = .average,
 		},
 		.{
 			.source = .hardness,
@@ -50,6 +52,7 @@
 				0x0, 0x0, 0x0, 0x0, 1.0,
 			},
 			.factor = 120,
+			.method = .average,
 		},
 		.{
 			.source = .hardness,
@@ -62,6 +65,7 @@
 				0x0, 0x0, 0x0, 0x0, 0.0,
 			},
 			.factor = 0.7,
+			.method = .average,
 		},
 		.{
 			.source = .elasticity,
@@ -74,6 +78,7 @@
 				0x0, 0x0, 0x0, 0x0, 1.5,
 			},
 			.factor = 120,
+			.method = .average,
 		},
 		.{
 			.source = .elasticity,
@@ -86,6 +91,7 @@
 				0x0, 0x0, 0x0, 0x0, 0.0,
 			},
 			.factor = -1.0,
+			.method = .average,
 		},
 	},
 }
diff --git a/src/items.zig b/src/items.zig
index 0409224a..626825fb 100644
--- a/src/items.zig
+++ b/src/items.zig
@@ -398,7 +398,12 @@ const ToolPhysics = struct { // MARK: ToolPhysics
 				weight += property.weigths[i];
 			}
 			if(weight == 0) continue;
-			sum /= weight;
+			switch(property.method) {
+				.sum => {},
+				.average => {
+					sum /= weight;
+				},
+			}
 			sum *= property.resultScale;
 			tool.getProperty(property.destination orelse continue).* += sum;
 		}
@@ -443,6 +448,19 @@ const PropertyMatrix = struct { // MARK: PropertyMatrix
 	destination: ?ToolProperty,
 	weigths: [25]f32,
 	resultScale: f32,
+	method: Method,
+
+	const Method = enum {
+		average,
+		sum,
+
+		fn fromString(string: []const u8) ?Method {
+			return std.meta.stringToEnum(Method, string) orelse {
+				std.log.err("Couldn't find property matrix method {s}.", .{string});
+				return null;
+			};
+		}
+	};
 };
 
 pub const ToolType = struct { // MARK: ToolType
@@ -947,6 +965,7 @@ pub fn registerTool(assetFolder: []const u8, id: []const u8, zon: ZonElement) vo
 		val.source = MaterialProperty.fromString(paramZon.get([]const u8, "source", "not specified"));
 		val.destination = ToolProperty.fromString(paramZon.get([]const u8, "destination", "not specified"));
 		val.resultScale = paramZon.get(f32, "factor", 1.0);
+		val.method = PropertyMatrix.Method.fromString(paramZon.get([]const u8, "method", "not specified")) orelse .sum;
 		const matrixZon = paramZon.getChild("matrix");
 		for(0..25) |i| {
 			val.weigths[i] = matrixZon.getAtIndex(f32, i, 0.0);