Port Contour Cutters

SAE J1926, MS 16142

Tungsten Carbide-Tipped, Straight Shank

Part Number Thread Size Tube No. Tube OD

A
Small Dia.

B
Spotface Dia.

C
Bore Length

D
Head Length

E
Shank Dia.

F
Shank Length

Pre-Drill Diameter x Length
263-2031 5/16-24 2 1/8" 0.272" 0.682" 0.473" 1 5/8" 1/2" 3 1/8" F x .688
263-2037 3/8-24 3 3/16" 0.335" 0.760" 0.473" 1 5/8" 1/2" 3 1/8" O x .688
263-2043 7/16-20 4 1/4" 0.389" 0.838" 0.552" 1 5/8" 1/2" 3 1/8" U x .812
263-2050 1/2-20 5 5/16" 0.452" 0.916" 0.552" 1 5/8" 1/2" 3 1/8" .44 x .812
263-2056 9/16-18 6 3/8" 0.509" 0.979" 0.614" 1 5/8" 1/2" 3 1/8" .48 x .875
263-3075 3/4-16 8 1/2" 0.689" 1.198" 0.693" 1 7/8" 3/4" 3 7/8" .67 x .937
263-3087 7/8-14 10 5/8" 0.806" 1.354" 0.786" 1 7/8" 3/4" 3 7/8" .78 x 1.062
263-3106 1 1/16-12 12 3/4" 0.981" 1.635" 0.911" 2 1/8" 3/4" 3 7/8" .95 x 1.250
263-3118 1 3/16-12 14 7/8" 1.106" 1.775" 0.911" 2 1/8" 3/4" 3 7/8" 1.09 x 1.250
263-3131 1 5/16-12 16 1" 1.231" 1.920" 0.911" 2 1/8" 3/4" 3 7/8" 1.21 x 1.250
263-4162 1 5/8-12 20 1 1/4" 1.544" 2.280" 0.911" 2 1/8" 1" 4 7/8" 1.53 x 1.250
263-4187 1 7/8-12 24 1 1/2" 1.794" 2.570" 0.911" 2 1/8" 1" 4 7/8" 1.78 x 1.250
263-4250 2 1/2-12 32 2" 2.419" 3.490" 0.911" 2 1/8" 1" 4 7/8" 2.41 x 1.250