Solid Carbide Burs 60°/ 90° Angle Burs (countersink)Styles: 1856 (CLE-SJ), 1857 (CLE-SK) Note See index page for Standard Shank Styles explanation. order number USCTI cutting diameter shank length overall included shank 1856 (60° incl.) 1857 (90° incl.) number mm decimal diameter of cut length angle type Single Cut Single Cut SK-512.7.500066.3557.990°C—C17742 SJ-615.88.62506 61.960°CC17766 — SK-615.88.62506 61.990°C—C17767 Solid Carbide Burs Inverted Taper BursStyle: 1858 (CLE-SN) Note See index page for Standard Shank Styles explanation. order number USCTI cutting diameter shank length overall included shank 1858 number fraction mm decimal diameter of cut length angle type Single Cut Double Cut SN-413/32.09381/83/161-1/2—AC10073— SN-511/4.25001/81/41-1/210°AC10074C10075 SN-51 6.35.25003.06.438.110°AC17780— Solid Carbide Burs Variety Set SET Style: 1855 Plastic CaseStandard Shank StylesNoteShank A 1/8" (3mm) solid carbideSee index page for Standard Shank Styles explanation. Shank B 1/8" (3mm) hardened steel 8-Piece Set Bright #C17763 Shank C 1/4" (6mm) hardened steel Shank D 1/4" (6mm) solid carbide order number set contains cutting diameter shank no. of shank 1855 USCTI Nos. fractional decimal metric diameter pieces type Single Cut Double Cut NEW SA-42, SA-43, SC-41, SC-42, SF-42, SG-42 SM-43, SE-41, SD-42 3/32 & 1/8 .0938 .1250 2.38 3.18 1/8 9 A C17760 C17768 SA-51, SB-51, SC-51, SF-51, SG-51, SM-51, SE-51, SD-51, SN-51 1/4 .2500 6.35 1/8 9 B C17761 C17769 SA-1, SC-1, SF-1, SG-1, SM-2, SE-1, SL-1, SD-1 1/4 .2500 6.35 1/4 8 C C17762 C17770 SA-5, SC-5, SF-5, SG-5, SM-5, SE-5, SL-4, SD-5 1/2 .5000 12.70 1/4 8 C C17763 C17771
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