diff --git a/boom/lib/captol.inc b/boom/lib/captol.inc
new file mode 100644
index 0000000..956e17c
--- /dev/null
+++ b/boom/lib/captol.inc
@@ -0,0 +1,10 @@
+# Must be indented !!
+
+    _TOL=A -> TOL=0.05pF
+    _TOL=B -> TOL=0.1pF
+    _TOL=C -> TOL=0.25pF
+    _TOL=D -> TOL=0.5pF
+
+    include tol.inc
+
+    _TOL=Z -> TOL=80/20%
diff --git a/boom/lib/tol.inc b/boom/lib/tol.inc
new file mode 100644
index 0000000..53ab5e5
--- /dev/null
+++ b/boom/lib/tol.inc
@@ -0,0 +1,7 @@
+# Must be indented !!
+
+    _TOL=F -> TOL=1%
+    _TOL=G -> TOL=2%
+    _TOL=J -> TOL=5%
+    _TOL=K -> TOL=10%
+    _TOL=M -> TOL=20%
diff --git a/boom/manu/panasonic/panasonic.gen b/boom/manu/panasonic/panasonic.gen
index f715bfe..b99314b 100644
--- a/boom/manu/panasonic/panasonic.gen
+++ b/boom/manu/panasonic/panasonic.gen
@@ -141,11 +141,7 @@ ERJ* -> T=R {
     _LOW_R=(??)M -> _E12_1=R0${_LOW_R:1}
     _LOW_R=(??)C -> _E12_1=R${_LOW_R:1}
 
-    _TOL=D -> TOL=0.5%
-    _TOL=F -> TOL=1%
-    _TOL=G -> TOL=2%
-    _TOL=J -> TOL=5%
-    _TOL=K -> TOL=10%
+    include ../../lib/tol.inc
 }
 
 include ../../lib/e12.inc
diff --git a/boom/manu/stackpole/stackpole.gen b/boom/manu/stackpole/stackpole.gen
index ff4a35e..abaf375 100644
--- a/boom/manu/stackpole/stackpole.gen
+++ b/boom/manu/stackpole/stackpole.gen
@@ -6,8 +6,7 @@ RMCF* -> T=R {
     RMCF(????)(?)(?)([0-9R][0-9RKM][0-9RKM])* ->
 	FP=$REF:1 _TOL=$REF:2 _R=$REF:4
 
-    _TOL=F -> TOL=1%
-    _TOL=J -> TOL=5%
+    include ../../lib/tol.inc
 
     FP=0201 -> P=1/20W V=25V
     FP=0402 -> P=1/16W V=50V
diff --git a/boom/manu/yageo/yageo.gen b/boom/manu/yageo/yageo.gen
index b1d3680..35e9169 100644
--- a/boom/manu/yageo/yageo.gen
+++ b/boom/manu/yageo/yageo.gen
@@ -8,8 +8,7 @@ RC* -> T=R {
     RC(????)([FJ])[RK]-(07|10|13)(*)L* ->
 	FP=$REF:1 _TOL=$REF:2 _R=$REF:4
 
-    _TOL=F -> TOL=1%
-    _TOL=J -> TOL=5%
+    include ../../lib/tol.inc
 
     FP=0100 -> FP=01005 P=1/32W V=15
     FP=0201 -> P=1/20W V=25V
@@ -17,9 +16,6 @@ RC* -> T=R {
     FP=0603 -> P=1/10W V=50V
     FP=0805 -> P=1/8W V=150V
     FP=1206 -> P=1/4W V=200V
-
-    _TOL=F -> TOL=1%
-    _TOL=J -> TOL=5%
 }
 
 # Adjust multipliers