EN

BaerCoil® core hole dimensions

M – metric standard thread

Core drill mm
M 2 x 0,42,1
M 2.2 x 0.452,3
M 2.5 x 0.452,6
M 3 x 0.53,2
M 3.5 x 0.63,7
M 4 x 0.74,2
M 5 x 0.85,3
M 6 x 0.756,2
M 6 x 1.06,3
M 7 x 1.07,3
M 8 x 0.758,2
M 8 x 1.08,3
M 8 x 1.258,3
M 9 x 1.09,3
M 9 x 1.259,3
M 10 x 1.010,3
M 10 x 1.2510,3
M 10 x 1.510,4
M 11 x 1.011,3
M 11 x 1.2511,3
M 11 x 1.511,4
M 12 x 1.012,3
M 12 x 1.2512,3
M 12 x 1.512,4
Core drill mm
M 12 x 1,7512,4
M 13 x 1.2513,4
M 13 x 1.513,4
M 13 x 1.7513,4
M 14 x 1.014,4
M 14 x 1.2514,4
M 14 x 1.514,5
M 14 x 2.014,5
M 15 x 1.515,5
M 15 x 2.015,5
M 16 x 1.516,5
M 16 x 2.016,5
M 18 x 1.518,5
M 18 x 2.018,5
M 18 x 2.518,5
M 20 x 1.520,5
M 20 x 2.020,5
M 20 x 2.520,5
M 22 x 1.522,5
M 22 x 2.022,5
M 22 x 2.522,5
M 24 x 1.524,5
M 24 x 2.024,5
M 24 x 3.024,5
Core drill mm
M 26 x 1,526,5
M 27 x 1.527,5
M 27 x 2.027,5
M 27 x 3.027,5
M 28 x 1.528,5
M 30 x 1.530,5
M 30 x 2.030,5
M 30 x 3.030,5
M 30 x 3.530,5
M 33 x 2.033,5
M 33 x 3.533,5
M 36 x 1.536,5
M 36 x 2.036,5
M 36 x 3.036,5
M 36 x 4.036,5
M 39 x 2.039,5
M 39 x 3.039,5
M 39 x 4.039,5
M 42 x 2.042,5
M 42 x 3.042,8
M 42 x 4.043,0
M 42 x 4.543,0

UNC - americ. Coarse thread

Core drill mm
UNC No 2 x 562,30
UNC No 3 x 482,60
UNC No 4 x 403,00
UNC No 5 x 403,40
UNC No 6 x 323,70
UNC No 8 x 324,40
UNC No 10 x 245,10
UNC No 12 x 245,70
Core drill mm
UNC 1/4 x 206,70
UNC 5/16 x 188,30
UNC 3/8 x 169,90
UNC 7/16 x 1411,60
UNC 1/2 x 1313,00
UNC 9/16 x 1214,80
UNC 5/8 x 1116,50
UNC 11/16x1118,50
Core drill mm
UNC 3/4 x 1019,75
UNC 7/8 x 923,00
UNC 1" x 826,25
UNC 1.1/8 x 729,50
UNC 1.1/4 x 733,00
UNC 1.3/8 x 636,00
UNC 1.1/2 x 639,00

UNF - americ. Fine thread

Core drill mm
UNF No 3 x 562,6
UNF No 4 x 483,0
UNF No 6 x 403,7
UNF No 8 x 364,4
UNF No 10 x 325,1
UNF 1/4 x 286,6
UNF 5/16 x 248,2
Core drill mm
UNF 3/8 x 249,8
UNF 7/16 x 2011,5
UNF 1/2 x 2013,0
UNF 9/16 x 1814,8
UNF 5/8 x 1816,3
UNF 3/4 x 1619,5
UNF 7/8 x 1422,8
Core drill mm
UNF 1" x 1226,0
UNF 1" x 1426,0
UNF 1.1/8 x 1229,0
UNF 1.1/4 x 1232,5
UNF 1.3/8 x 1235,5
UNF 1.1/2 x 1238,5

G (BSP) - pipe thread

Core drill mm
G 1/8 x 2810,0
G 1/4 x 1913,5
G 3/8 x 1917,0
G 1/2 x 1421,5
Core drill mm
G 5/8 x 1423,5
G 3/4 x 1427,0
G 7/8 x 1430,5
G 1" x 1133,5
Core drill mm
G 1.1/4 x 1142,5
G 1.1/2 x 1148,5

BSW - British coarse thread

Core drill mm
BSW 1/8 x 403,40
BSW 3/16 x 245,10
BSW 1/4 x 206,70
BSW 5/16 x 188,30
BSW 3/8 x 169,90
BSW 7/16 x 1411,60
Core drill mm
BSW 1/2 x 1213,00
BSW 9/16 x 1214,80
BSW 5/8 x 1116,70
BSW 11/16x1118,50
BSW 3/4 x1020,00
BSW 7/8 x 923,00
Core drill mm
BSW 1" x 826,50
BSW 1.1/8 x 729,50
BSW 1.1/4 x 733,00
BSW 1.3/8 x 636,00
BSW 1.1/2 x 639,00

BSF - British fine thread

Core drill mm
BSF 3/16 x 325,0
BSF 7/32 x 285,8
BSF 1/4 x 266,6
BSF 9/32 x 267,3
BSF 5/16 x 228,3
BSF 3/8 x 209,9
BSF 7/16 x 1811,6
Core drill mm
BSF 1/2 x 1613,0
BSF 9/16 x 1614,8
BSF 5/8 x 1416,4
BSF 11/16x 1418,0
BSF 3/4 x 1219,5
BSF 13/16x 1221,0
BSF 7/8 x 1122,7
Core drill mm
BSF 1" x 1026,5
BSF 1.1/8 x 929,5
BSF 1.1/4 x 932,5
BSF 1.3/8 x 836,0
BSF 1.1/2 x 839,0

BA - brit. assn. Thread

Core drill mm
BA 06,2
BA 15,5
BA 24,9
Core drill mm
BA 34,2
BA 43,8
BA 53,3
Core drill mm
BA 62,9

BSB - brit. std. thread

Core drill mm
BSB 1/4 x 266,5
BSB 5/16 x 268,2
BSB 3/8 x 269,8
BOD 7/16 x 2611,5
BOD 1/2 x 2612,8

BSC - brit. std. thread

Core drill mm
BSC 5/16 x 268,2
BSC 3/8 x 269,8
BSC 7/16 x 2611,5
BSC 1/2 x 2612,8

NPT - amer. keg. Pipe thread

Core drill mm
NPT 1/8 x 279,9
NPT 1/4 x 1913,5
NPT 3/8 x 1817,0
NPT 1/2 x 1421,5
NPT 3/4 x 1427,0
NPT 1" x 11.533,5

Special sizes

Core drill mm
UNEF 1/4 x 326,5
Harley 1/4 x 246,5
Harley 7/16x1611,5
Cummins 11/16x1618,0
Carburetor 7/8 x 2022,5
Carburetor 1" x 2026,0

8 UN - amer. with special slope

Core drill mm
1.1/8 "x 828,5
1.1/4" x 832,0
1.3/8" x 835,0
1.1/2" x 838,0
1.5/8" x 841,0
1.3/4" x 844,5
1.7/8" x 847,5
2" x 851,0