diff --git a/mods/ITEMS/REDSTONE/mcl_dispensers/init.lua b/mods/ITEMS/REDSTONE/mcl_dispensers/init.lua
index dd4e7072be..545a45d98e 100644
--- a/mods/ITEMS/REDSTONE/mcl_dispensers/init.lua
+++ b/mods/ITEMS/REDSTONE/mcl_dispensers/init.lua
@@ -44,7 +44,8 @@ local dispenserdef = {
 		end
 		meta:from_table(meta2:to_table())
 	end,
-	mcl_blast_resistance = 17.5,
+	_mcl_blast_resistance = 17.5,
+	_mcl_hardness = 3.5,
 	mesecons = {effector = {
 		-- Dispense random item when triggered
 		action_on = function (pos, node)
@@ -357,7 +358,7 @@ horizontal_def.tiles = {
 	"default_furnace_side.png", "mcl_dispensers_dispenser_front_horizontal.png"
 }
 horizontal_def.paramtype2 = "facedir"
-horizontal_def.groups = {cracky=2,container=2}
+horizontal_def.groups = {pickaxey=1, container=2}
 
 minetest.register_node("mcl_dispensers:dispenser", horizontal_def)
 
@@ -370,7 +371,7 @@ down_def.tiles = {
 	"default_furnace_side.png", "default_furnace_side.png",
 	"default_furnace_side.png", "default_furnace_side.png"
 }
-down_def.groups = {cracky=2,container=2,not_in_creative_inventory=1}
+down_def.groups = {pickaxey=1, container=2,not_in_creative_inventory=1}
 down_def.drop = "mcl_dispensers:dispenser"
 minetest.register_node("mcl_dispensers:dispenser_down", down_def)
 
diff --git a/mods/ITEMS/REDSTONE/mcl_droppers/init.lua b/mods/ITEMS/REDSTONE/mcl_droppers/init.lua
index 239a73d95d..fc01e42256 100644
--- a/mods/ITEMS/REDSTONE/mcl_droppers/init.lua
+++ b/mods/ITEMS/REDSTONE/mcl_droppers/init.lua
@@ -45,6 +45,7 @@ local dropperdef = {
 		meta:from_table(meta2:to_table())
 	end,
 	_mcl_blast_resistance = 17.5,
+	_mcl_hardness = 3.5,
 	mesecons = {effector = {
 		-- Drop random item when triggered
 		action_on = function (pos, node)
@@ -113,7 +114,7 @@ horizontal_def.tiles = {
 	"default_furnace_side.png", "mcl_droppers_dropper_front_horizontal.png"
 }
 horizontal_def.paramtype2 = "facedir"
-horizontal_def.groups = {cracky=2,container=2}
+horizontal_def.groups = {pickaxey=1, container=2}
 
 minetest.register_node("mcl_droppers:dropper", horizontal_def)
 
@@ -126,7 +127,7 @@ down_def.tiles = {
 	"default_furnace_side.png", "default_furnace_side.png",
 	"default_furnace_side.png", "default_furnace_side.png"
 }
-down_def.groups = {cracky=2,container=2,not_in_creative_inventory=1}
+down_def.groups = {pickaxey=1, container=2,not_in_creative_inventory=1}
 down_def.drop = "mcl_droppers:dropper"
 minetest.register_node("mcl_droppers:dropper_down", down_def)
 
diff --git a/mods/ITEMS/REDSTONE/mcl_observers/init.lua b/mods/ITEMS/REDSTONE/mcl_observers/init.lua
index 10f31ffaac..bd04aa3fb5 100644
--- a/mods/ITEMS/REDSTONE/mcl_observers/init.lua
+++ b/mods/ITEMS/REDSTONE/mcl_observers/init.lua
@@ -4,7 +4,7 @@ minetest.register_node("mcl_observers:observer", {
 	sounds = mcl_sounds.node_sound_stone_defaults(),
 	paramtype2 = "facedir",
 	-- TODO: Add to craft guide and creative inventory when it's useful
-	groups = { cracky=2, not_in_craft_guide=1, not_in_creative_inventory=1 },
+	groups = {pickaxey=1, not_in_craft_guide=1, not_in_creative_inventory=1 },
 	tiles = {
 		"mcl_observers_observer_top.png", "default_furnace_bottom.png",
 		"mcl_observers_observer_side.png", "mcl_observers_observer_side.png",
@@ -25,6 +25,7 @@ minetest.register_node("mcl_observers:observer", {
 		meta:from_table(meta2:to_table())
 	end,
 	_mcl_blast_resistance = 17.5,
+	_mcl_hardness = 3.5,
 	-- TODO: Mesecons handling
 	mesecons = {effector = {
 	}}
diff --git a/mods/ITEMS/REDSTONE/mesecons_button/init.lua b/mods/ITEMS/REDSTONE/mesecons_button/init.lua
index 5c148d8d2b..030da8ecbb 100644
--- a/mods/ITEMS/REDSTONE/mesecons_button/init.lua
+++ b/mods/ITEMS/REDSTONE/mesecons_button/init.lua
@@ -36,7 +36,7 @@ minetest.register_node("mesecons_button:button_stone_off", {
 		type = "fixed",	
 		fixed = boxes_off	-- the button itself
 	},
-	groups = {cracky=3, attached_node=1, dig_by_water=1},
+	groups = {handy=1,pickaxey=1, attached_node=1, dig_by_water=1},
 	description = "Stone Button",
 	on_rightclick = function (pos, node)
 		mesecon:swap_node(pos, "mesecons_button:button_stone_on")
@@ -50,6 +50,7 @@ minetest.register_node("mesecons_button:button_stone_off", {
 		rules = mesecon.rules.buttonlike_get
 	}},
 	_mcl_blast_resistance = 2.5,
+	_mcl_hardness = 0.5,
 })
 
 minetest.register_node("mesecons_button:button_stone_on", {
@@ -68,7 +69,7 @@ minetest.register_node("mesecons_button:button_stone_on", {
 		type = "fixed",	
 		fixed = boxes_on	-- the button itself
 	},
-	groups = {cracky=3, not_in_creative_inventory=1, attached_node=1, dig_by_water=1},
+	groups = {handy=1,pickaxey=1, not_in_creative_inventory=1, attached_node=1, dig_by_water=1},
 	drop = 'mesecons_button:button_stone_off',
 	description = "Stone Button",
 	sounds = mcl_sounds.node_sound_stone_defaults(),
@@ -77,6 +78,7 @@ minetest.register_node("mesecons_button:button_stone_on", {
 		rules = mesecon.rules.buttonlike_get
 	}},
 	_mcl_blast_resistance = 2.5,
+	_mcl_hardness = 0.5,
 })
 
 minetest.register_node("mesecons_button:button_wood_off", {
@@ -95,7 +97,7 @@ minetest.register_node("mesecons_button:button_wood_off", {
 		type = "fixed",	
 		fixed = boxes_off	-- the button itself
 	},
-	groups = {choppy=3, attached_node=1, dig_by_water=1},
+	groups = {handy=1,axey=1, attached_node=1, dig_by_water=1},
 	description = "Wooden Button",
 	on_rightclick = function (pos, node)
 		mesecon:swap_node(pos, "mesecons_button:button_wood_on")
@@ -109,6 +111,7 @@ minetest.register_node("mesecons_button:button_wood_off", {
 		rules = mesecon.rules.buttonlike_get
 	}},
 	_mcl_blast_resistance = 2.5,
+	_mcl_hardness = 0.5,
 })
 
 minetest.register_node("mesecons_button:button_wood_on", {
@@ -127,7 +130,7 @@ minetest.register_node("mesecons_button:button_wood_on", {
 		type = "fixed",	
 		fixed = boxes_on	-- the button itself
 	},
-	groups = {choppy=3, not_in_creative_inventory=1, attached_node=1, dig_by_water=1},
+	groups = {handy=1,axey=1, not_in_creative_inventory=1, attached_node=1, dig_by_water=1},
 	drop = 'mesecons_button:button_wood_off',
 	description = "Wooden Button",
 	sounds = mcl_sounds.node_sound_wood_defaults(),
@@ -136,6 +139,7 @@ minetest.register_node("mesecons_button:button_wood_on", {
 		rules = mesecon.rules.buttonlike_get
 	}},
 	_mcl_blast_resistance = 2.5,
+	_mcl_hardness = 0.5,
 })
 
 minetest.register_craft({
diff --git a/mods/ITEMS/REDSTONE/mesecons_lightstone/init.lua b/mods/ITEMS/REDSTONE/mesecons_lightstone/init.lua
index 04fac65318..58fda90778 100644
--- a/mods/ITEMS/REDSTONE/mesecons_lightstone/init.lua
+++ b/mods/ITEMS/REDSTONE/mesecons_lightstone/init.lua
@@ -1,7 +1,7 @@
 minetest.register_node("mesecons_lightstone:lightstone_off", {
 	tiles = {"jeija_lightstone_gray_off.png"},
 	inventory_image = minetest.inventorycube("jeija_lightstone_gray_off.png"),
-	groups = {cracky=2, mesecon_effector_off = 1, mesecon = 2},
+	groups = {handy=1, mesecon_effector_off = 1, mesecon = 2},
 	is_ground_content = false,
 	description= "Redstone Lamp",
 	sounds = mcl_sounds.node_sound_stone_defaults(),
@@ -11,12 +11,13 @@ minetest.register_node("mesecons_lightstone:lightstone_off", {
 		end
 	}},
 	_mcl_blast_resistance = 1.5,
+	_mcl_hardness = 0.3,
 })
 
 minetest.register_node("mesecons_lightstone:lightstone_on", {
 	tiles = {"jeija_lightstone_gray_on.png"},
 	inventory_image = minetest.inventorycube("jeija_lightstone_gray_off.png"),
-	groups = {cracky=2,not_in_creative_inventory=1, mesecon = 2},
+	groups = {handy=1, not_in_creative_inventory=1, mesecon = 2},
 	drop = "node mesecons_lightstone:lightstone_off",
 	is_ground_content = false,
 	-- Real light level: 15 (Minetest caps at 14)
@@ -28,6 +29,7 @@ minetest.register_node("mesecons_lightstone:lightstone_on", {
 		end
 	}},
 	_mcl_blast_resistance = 1.5,
+	_mcl_hardness = 0.3,
 })
 
 minetest.register_craft({
diff --git a/mods/ITEMS/REDSTONE/mesecons_noteblock/init.lua b/mods/ITEMS/REDSTONE/mesecons_noteblock/init.lua
index d18f13c5db..62ec9361a8 100644
--- a/mods/ITEMS/REDSTONE/mesecons_noteblock/init.lua
+++ b/mods/ITEMS/REDSTONE/mesecons_noteblock/init.lua
@@ -1,7 +1,7 @@
 minetest.register_node("mesecons_noteblock:noteblock", {
 	description = "Note Block",
 	tiles = {"mesecons_noteblock.png"},
-	groups = {choppy=2,oddly_breakable_by_hand=2},
+	groups = {handy=1,axey=1, oddly_breakable_by_hand=2},
 	drawtype = "allfaces_optional",
 	visual_scale = 1.3,
 	paramtype="light",
@@ -22,6 +22,7 @@ minetest.register_node("mesecons_noteblock:noteblock", {
 		end
 	}},
 	_mcl_blast_resistance = 4,
+	_mcl_hardness = 0.8,
 })
 
 minetest.register_craft({