Attachment kit includes a hook, flat, V-groove, point, chisel, and extension rod. Contact us to learn more about force gauge attachments Attachments for force gauges under 20 lbF AC1131-1 Attachment Kit Included Items (formerly 23-1031-1) G1028 Small hook, #10-32F G1029 Flat head, #10-32F G1026 Cone, #10-32F G1025 Chisel point, #10-32F G1027 V-groove, #10-32F G1024 Extension rod, 5", #10-32F *The above kit has the small hook instead of the medium hook and coupling shown below. This lighter hook weighs less than the medium hook and coupling combination. Attachments for force gauges 5 lbF to 100 lbF AC1131-2 Attachment Kit Included Items (formerly 23-1031-2) G1038 Medium hook, #10-32M (requires G1039) G1039 Coupling, #10-32F/F G1029 Flat head, #10-32F G1026 Cone, #10-32F G1025 Chisel point, #10-32F G1027 V-groove, #10-32F G1024 Extension rod, 5", #10-32F Attachments for force gauges 200 lbF to 500 lbF AC1131-3 Attachment Kit Included Items (formerly 23-1031-3) G1035 Large hook, 5/16-18M (requires G1037) G1037 Coupling, 5/16-18F/F G1036 Flat head, 5/16-18F G1033 Cone, 5/16-18F G1032 Chisel point, 5/16-18F G1034 V-groove, 5/16-18F G1031 Extension rod, 5", 5/16-18F