
USER GUIDE Reamer Manufacturing Tolerances (continued) Reamer Manufacturing Tolerances DIN 1420 Nominal Diameter of Admissible maximum and minimum reamer dimensions of nominal diameter d1 in µm for drilling Reamer D 1 in mm tolerance range REAMERS Over Up to R 6 R 7 S 6 S 7 T 6 U 6 U 7 U 10 X 10 X 11 Z 10 Z 11 1 3 -11 -12 -15 -16 -19 -19 -20 -24 -26 -29 -32 -35 -14 -16 -18 -20 -22 -22 -24 -38 -40 -50 -46 -56 3 6 -14 -13 -18 -17 -22 -22 -21 -31 -36 -40 -43 -47 -17 -18 -21 -22 -25 -25 -26 -48 -53 -67 -60 -56 6 10 -18 -16 -22 -20 -27 -27 -25 -37 -43 -48 -51 -47 -22 -22 -26 -26 -31 -31 -31 -58 -64 -80 -72 -74 10 14 -22 -19 -27 -24 -32 -32 -29 -44 -51 -57 -61 -56 -26 -26 -31 -31 -36 -36 -36 -69 -76 -96 -86 -88 14 18 -22 -19 -27 -24 -32 -32 -29 -44 - 56 -62 -71 -67 -26 -26 -31 -31 -36 -36 -36 -69 - 81 -101 -96 -106 18 24 -26 -24 -33 -31 -39 -39 -37 -54 - 67 -74 -86 -77 -31 -32 -38 -39 -44 -44 -45 -84 - 97 -120 -116 -116 24 30 -26 -24 -33 -31 -39 -46 -44 -61 - 77 -84 -101 -108 -31 -32 -38 -39 -44 -51 -52 -69 -107 -130 -131 -154 30 40 -32 -29 -41 -38 -46 -58 -55 -75 - 95 -104 -127 -136 -38 -38 -47 -47 -52 -64 -64 -110 -130 -160 -162 -192 40 50 -32 -29 -41 -38 -52 -68 -65 -85 -112 -121 -151 -160 -38 -38 -47 -47 -58 -74 -74 -120 -147 -177 -186 -216 50 65 -38 -35 -50 -47 -63 -84 -81 -105 -140 -151 -190 -201 -45 -46 -57 -58 -70 -91 -92 -147 -182 -218 -232 -268 65 80 -40 -37 -56 -53 -72 -99 -96 -120 -164 -175 -228 -239 -47 -48 -63 -64 -79 -106 -107 -162 -206 -242 -170 -306 80 100 -48 -44 -68 -64 -88 -121 -117 -145 -199 -211 -179 -291 -56 -57 -76 -77 -96 -129 -130 -194 -248 -288 -328 -368 100 120 -51 -47 -76 -72 -101 -141 -139 -165 -231 -243 -331 -343 -59 -60 -84 -85 -109 -149 -150 -214 -280 -320 -380 -420 120 140 -60 -54 -89 -83 -119 -167 -161 -194 -272 -286 -389 -403 -69 -68 -98 -97 -128 -176 -175 -250 -328 -374 -445 -491 140 160 -62 -56 -97 -91 -131 -187 -181 -214 -304 -318 -439 -453 -71 -70 -106 -105 -140 -196 -195 -270 -360 -406 -495 -541 Over Up to H 6 H 7 H 8 H 9 H 10 H 11 H 12 J 6 J 7 J 8 J S6 J S7 J S8 J S9 1 3 +5 +8 +11 +21 +34 +51 +85 +1 +2 +3 +2 +3 +4 +8 +2 +4 +6 +12 +20 +30 +50 -2 -2 -2 -1 -1 -1 -1 3 6 +6 +10 +15 +25 +40 +63 +102 +3 +4 +7 +2 +4 +6 +10 +3 +5 +8 +14 +23 +30 +60 0 -1 0 -1 -1 -1 -1 6 10 +7 +12 +18 +30 +49 +76 +127 +3 +5 +8 +3 +5 +7 +12 +3 +6 +10 +17 +28 +44 +74 -1 -1 0 -1 -1 -1 -1 10 16 +9 +15 +22 +36 +59 +93 +153 +4 +7 +10 +3 +6 +9 +15 +5 +8 +12 +20 +34 +54 +90 0 0 0 -1 -1 -1 -1 18 30 +11 +17 +28 +44 +71 +110 +178 +6 +8 +15 +4 +7 +11 +18 +6 +9 +16 +25 +41 +64 +104 +1 0 +3 -1 -1 -1 -1 30 50 +13 +21 +33 +52 +85 +136 +212 +7 +10 +18 +5 +8 +13 +21 +7 +12 +19 +30 +50 +80 +124 +1 +1 +4 -1 -1 -1 -1 50 80 +16 +25 +39 +62 +102 +161 +255 +10 +13 +21 +6 +10 +16 +25 +9 +14 +22 +36 +60 +94 +150 +3 +2 +4 -1 -1 -1 -1 90 120 +18 +29 +45 +73 +119 +187 +297 +12 +16 +25 +7 +12 +18 +30 +10 +16 +26 +42 +70 +110 +174 +4 +3 +6 -1 -1 -1 -1 120 180 +21 +34 +53 +85 +136 +212 +360 +14 +20 +31 +8 +16 +72 +35 +12 +20 +30 +50 +80 +124 +200 +5 +6 +8 -1 0 -1 0 Over Up to K 6 K 7 K 8 M 6 M 7 M 8 N 6 N 7 N 8 N 9 N 10 N 11 P 6 P 7 1 3 -1 -2 -3 -3 -4 -5 -5 -6 -7 -8 -10 -13 -7 -8 -4 -6 -8 -6 -8 -10 -8 -10 -12 -17 -24 -34 -10 -12 3 6 0 +1 +2 -3 -2 -1 -7 -6 -5 -5 -8 -12 -11 -10 -3 -4 -5 -6 -7 -8 -10 -11 -12 -16 -25 -39 -14 -15 6 10 0 +2 +2 -5 -3 -3 -9 -7 -7 -6 -9 -14 -14 -12 -4 -4 -6 -9 -9 -11 -13 -13 -15 -19 -30 -46 -18 -18 10 18 0 +3 +3 -6 -3 -3 -11 -8 -8 -7 -11 -17 -17 -14 -4 -4 -7 -10 -10 -13 -15 -15 -18 -23 -36 -56 -21 -21 18 30 0 +2 +5 -6 -4 -1 -13 -11 -8 -8 -13 -20 -20 -18 -5 -6 -7 -11 -12 -13 -18 -19 -20 -27 -43 -66 -25 -26 30 50 0 +3 +6 -7 -4 -1 -15 -12 -9 -10 -15 -24 -24 -21 -6 -6 -8 -13 -13 -15 -21 -21 -23 -32 -50 -80 -30 -30 50 80 +1 +4 +7 -8 -5 -2 -17 -14 -11 -12 -18 -29 -29 -26 -6 -7 -10 -15 -16 -19 -24 -25 -28 -38 -60 -96 -36 -37 80 120 0 +4 +7 -10 -6 -3 -20 -16 -13 -14 -21 -33 -34 -30 -8 -9 -12 -18 -19 -22 -28 -29 -32 -45 -70 -110 -42 -43 120 180 0 +6 +10 -12 -6 -2 -24 -18 -14 -15 -24 -38 -40 -34 -9 -8 -13 -21 -20 -25 -33 -32 -37 -50 -80 -126 -49 +48 689 689