Think Composite Drilling | Brochure List SOLID CARBIDE 8 FACET DRILLS Onsrud's drills for composite materials incorporate an 8-facet point design that reduces cutting forces and eliminates delamination when exiting the material. The solid carbide drills are wear-resistant and can be coated for improved tool life. The drills can be used on carbon fiber and other composite materials where clean, delamination free holes are desired. Custom sizes can be made upon request. 
WHAT IS A 8 FACET DRILL? An 8 facet drill consists of 4 cutting edges with 2 facets per cutting edge. These facets consist of the lip relief and the lip clearance angle. 
| FRACTIONAL DRILLS PART # | CED | CEL | SHK DIA | OAL | 67-807 | 1/8 (0.125) | 1-1/4 | 0.125 | 2-1/4 | 67-808 | 9/64 (0.140) | 1-3/8 | 0.140 | 2-1/2 | 67-809 | 5/32 (0.156) | 1-3/8 | 0.156 | 2-1/2 | 67-810 | 11/64 (0.172) | 1-5/8 | 0.172 | 2-3/4 | 67-811 | 3/16 (0.188) | 1-5/8 | 0.188 | 2-3/4 | 67-812 | 13/64 (0.203) | 1-3/4 | 0.203 | 3 | 67-813 | 7/32 (0.219) | 1-3/4 | 0.219 | 3 | 67-814 | 15/64 (0.234) | 2 | 0.234 | 3-1/4 | 67-815 | 1/4 (0.250) | 2 | 0.250 | 3-1/4 | 67-816 | 17/64 (0.266) | 2-1/8 | 0.266 | 3-1/2 | 67-817 | 9/32 (0.281) | 2-1/8 | 0.281 | 3-1/2 | 67-818 | 19/64 (0.297) | 2-3/8 | 0.297 | 3-3/4 | 67-819 | 5/16 (0.313) | 2-3/8 | 0.313 | 3-3/4 | 67-820 | 21/64 (0.328) | 2-1/2 | 0.328 | 4 | 67-821 | 11/32 (0.344) | 2-1/2 | 0.344 | 4 | 67-822 | 23/64 (0.359) | 2-1/2 | 0.359 | 4 | 67-823 | 3/8(0.375) | 2-3/4 | 0.375 | 4-1/4 | 67-824 | 25/64 (0.391) | 2-7/8 | 0.391 | 4-1/2 | 67-825 | 13/32 (0.406) | 2-7/8 | 0.406 | 4-1/2 | 67-826 | 27/64 (0.422) | 2-7/8 | 0.422 | 4-1/2 | 67-827 | 7/16 (0.438) | 2-7/8 | 0.438 | 4-1/2 | 67-828 | 29/64 (0.453) | 3 | 0.453 | 4-3/4 | 67-829 | 15/32 (0.469) | 3 | 0.469 | 4-3/4 | 67-830 | 31/64 (0.484) | 3 | 0.484 | 4-3/4 | 67-831 | 1/2 (0.500) | 3 | 0.500 | 4-3/4 |
LETTER DRILLS PART # | CED | CEL | SHK DIA | OAL | 67-850 | A (0.234) | 2 | 0.234 | 3-1/4 | 67-851 | B (0.238) | 2 | 0.238 | 3-1/4 | 67-852 | C (0.242) | 2 | 0.242 | 3-1/4 | 67-853 | D (0.246) | 2 | 0.246 | 3-1/4 | 67-854 | E (0.250) | 2 | 0.250 | 3-1/4 | 67-855 | F (0.257) | 2 | 0.257 | 3-1/4 | 67-856 | G (0.261) | 2-1/8 | 0.261 | 3-1/2 | 67-857 | H (0.266) | 2-1/8 | 0.266 | 3-1/2 | 67-858 | I (0.272) | 2-1/8 | 0.272 | 3-1/2 | 67-859 | J (0.277) | 2-1/8 | 0.277 | 3-1/2 | 67-860 | K (0.281) | 2-1/8 | 0.281 | 3-1/2 | 67-861 | L (0.291) | 2-1/8 | 0.291 | 3-1/2 | 67-862 | M (0.295) | 2-3/8 | 0.295 | 3-3/4 | 67-863 | N (0.302) | 2-3/8 | 0.302 | 3-3/4 | 67-864 | O (0.316) | 2-3/8 | 0.316 | 3-3/4 | 67-865 | P (0.323) | 2-3/8 | 0.323 | 3-3/4 | 67-866 | Q (0.332) | 2-3/8 | 0.332 | 4 | 67-867 | R (0.339) | 2-3/8 | 0.339 | 4 | 67-868 | S (0.348) | 2-1/2 | 0.348 | 4 | 67-869 | T (0.358) | 2-1/2 | 0.358 | 4 | 67-870 | U (0.368) | 2-1/2 | 0.368 | 4-1/4 | 67-871 | V (0.377) | 2-1/2 | 0.377 | 4-1/4 | 67-872 | W (0.386) | 2-3/4 | 0.386 | 4-1/2 | 67-873 | X (0.397) | 2-3/4 | 0.397 | 4-1/2 | 67-874 | Y (0.404) | 2-7/8 | 0.404 | 4-1/2 | 67-875 | Z (0.413) | 2-7/8 | 0.413 | 4-1/2 |
| . UNIQUE TOOLS ? UNIQUE SOLUTIONS . | . 
| NUMBER DRILLS PART # | CED | CEL | SHK DIA | OAL | 67-876 | 1 (0.228) | 1-3/4 | 0.228 | 3 | 67-877 | 2 (0.221) | 1-3/4 | 0.221 | 3 | 67-878 | 3 (0.213) | 1-3/4 | 0.213 | 3 | 67-879 | 4 (0.209) | 1-3/4 | 0.209 | 3 | 67-880 | 5 (0.206) | 1-3/4 | 0.206 | 3 | 67-881 | 6 (0.203) | 1-3/4 | 0.203 | 3 | 67-882 | 7 (0.201) | 1-3/4 | 0.201 | 3 | 67-883 | 8 (0.199) | 1-3/4 | 0.199 | 3 | 67-884 | 9 (0.196) | 1-3/4 | 0.196 | 3 | 67-885 | 10 (0.194) | 1-5/8 | 0.194 | 2-3/4 | 67-886 | 11 (0.191) | 1-5/8 | 0.191 | 2-3/4 | 67-887 | 12 (0.189) | 1-5/8 | 0.189 | 2-3/4 | 67-888 | 13 (0.185) | 1-5/8 | 0.185 | 2-3/4 | 67-889 | 14 (0.182) | 1-5/8 | 0.182 | 2-3/4 | 67-890 | 15 (0.180) | 1-5/8 | 0.180 | 2-3/4 | 67-891 | 16 (0.177) | 1-5/8 | 0.177 | 2-3/4 | 67-892 | 17 (0.173) | 1-5/8 | 0.173 | 2-3/4 | 67-893 | 18 (0.170) | 1-5/8 | 0.170 | 2-3/4 | 67-894 | 19 (0.166) | 1-5/8 | 0.166 | 2-3/4 | 67-895 | 20 (0.161) | 1-3/8 | 0.161 | 2-1/2 | 67-896 | 21 (0.159) | 1-3/8 | 0.159 | 2-1/2 | 67-897 | 22 (0.157) | 1-3/8 | 0.157 | 2-1/2 | 67-898 | 23 (0.154) | 1-3/8 | 0.154 | 2-1/2 | 67-899 | 24 (0.152) | 1-3/8 | 0.152 | 2-1/2 | 67-900 | 25 (0.150) | 1-3/8 | 0.150 | 2-1/2 | 67-901 | 26 (0.147) | 1-3/8 | 0.147 | 2-1/2 | 67-902 | 27 (0.144) | 1-3/8 | 0.144 | 2-1/2 | 67-903 | 28 (0.141) | 1-3/8 | 0.141 | 2-1/2 | 67-904 | 29 (0.136) | 1-3/8 | 0.136 | 2-1/2 | 67-905 | 30 (0.129) | 1-1/4 | 0.129 | 2-1/4 | 67-906 | 31 | 1-1/4 | 0.120 | 2-1/4 |
| CLEAN HOLES IN COMPOSITE SHEETS ELIMINATE DELAMINATION PROBLEM CUSTOME SIZES AND LENGHTS UPON REQUEST | METRIC DRILLS PART # | CED | CEL | SHK DIA | OAL | 67-961 | 3.00 (0.118) | 1-1/4 | 3.00 | 2-1/4 | 67-962 | 3.50 (0.138) | 1-3/8 | 3.50 | 2-1/2 | 67-963 | 4.00 (0.157) | 1-3/8 | 4.00 | 2-1/2 | 67-964 | 4.50 (0.177) | 1-5/8 | 4.50 | 2-3/4 | 67-965 | 5.00 (0.197) | 1-3/4 | 5.00 | 3 | 67-966 | 5.50 (0.217) | 1-3/4 | 5.50 | 3 | 67-967 | 6.00 (0.236) | 2 | 6.00 | 3-1/4 | 67-968 | 6.50 (0.256) | 2 | 6.50 | 3-1/4 | 67-969 | 7.00 (0.276) | 2-1/8 | 7.00 | 3-1/2 | 67-970 | 7.50 (0.295) | 2-3/8 | 7.50 | 3-3/4 | 67-971 | K (0.1 | 2-3/8 | 8.00 | 3-3/4 | 67-972 | L (0.291) | 2-1/2 | 8.50 | 4 | 67-973 | M (0.295) | 2-1/2 | 9.00 | 4 | 67-974 | N (0.302) | 2-3/4 | 9.50 | 4-1/4 | 67-975 | O (0.316) | 2-7/8 | 10.00 | 4-1/2 | 67-976 | P (0.323) | 2-7/8 | 10.50 | 4-1/2 | 67-977 | Q (0.332) | 2-7/8 | 11.00 | 4-1/2 | 67-978 | R (0.339) | 3 | 11.50 | 4-3/4 | 67-979 | S (0.348) | 3 | 12.00 | 4-3/4 |
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