Bobtail Nose Assembly Charts (04/16/2015) Small Diameter Bobtail (Inch) Chart 1 Fastener Size Nose BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT -06 (3/16") -06 (3/16") -06 (3/16") -06 (3/16") -08 (1/4") -08 (1/4") -08 (1/4") -08 (1/4") -08 (1/4") -08 (1/4") -08 (1/4") -10 (5/16") -06 (3/16") -06 (3/16") -06 (3/16") -06 (3/16") -08 (1/4") -08 (1/4") -08 (1/4") -08 (1/4") -08 (1/4") -08 (1/4") -08 (1/4") -10 (5/16") -12 (3/8") -10 (5/16") -10 (5/16") -12 (3/8") -12 (3/8") -12 (3/8") -12 (3/8") -12 (3/8") -12 (3/8") 99-7921 99-7921CH 99-7921-1CH 99-7921-4CH 99-7920 99-7932 99-7932-4 99-7932CH 99-7932-1CH 99-7932-4CH 99-7932CC 99-7933 99-7921 99-7921CH 99-7921-1CH 99-7921-4CH 99-7920 99-7932 99-7932-4 99-7932CH 99-7932-1CH 99-7932-4CH 99-7932CC 99-7933 99-7927 99-7923 99-7923CC 99-7924 99-7924-2 99-7924-4 99-7924CH 99-7926 99-7924CC Style Installation - Standard Installation - Standard Installation - Long Installation -X Long Installation - Short Installation - Standard Installation - Long Installation - Standard Installation - Long Installation - XLong Removal Installation - Standard Installation - Standard Installation - Standard Installation - Long Installation -X Long Installation - Short Installation - Standard Installation - Long Installation - Standard Installation - Long Installation - XLong Removal Installation - Standard Installation - Stub Installation - Standard Removal Installation - Standard Installation - Long Installation - XLong Installation - Standard Installation - Short Removal Tool Notes 244BT 244BT 244BT 244BT 244BT 244BT 244BT 244BT 244BT 244BT 244BT 244BT 2480 2480 2480 2480 2480 2480 2480 2480 2480 2480 2480 2480 254BTS 254BT 254BT 254BT 254BT 254BT 254BT 254BT 254BT -----------------Chisel Clearance Nose Chisel Clearance Nose Chisel Clearance Nose ---------------------------------------------------Chisel Clearance Nose Chisel Clearance Nose Chisel Clearance Nose -----------------Aluminum Only -----------------Chisel Clearance Nose Chisel Clearance Nose Chisel Clearance Nose ---------------------------------------------------Chisel Clearance Nose Chisel Clearance Nose Chisel Clearance Nose -----------------Aluminum Only Grade 2 & Aluminum Only Grade 2 & Aluminum Only Grade 2 & Aluminum Only Grade 2 & Aluminum Only Grade 2 & Aluminum Only Grade 2 & Aluminum Only Chisel Grade 2 & Alum Only Grade 2 & Aluminum Only Grade 2 & Aluminum Only Small Diameter Bobtail (Inch) Chart 2 Fastener Size BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT -10 (5/16") -10 (5/16") -12 (3/8") -12 (3/8") -12 (3/8") -12 (3/8") -12 (3/8") -12 (3/8") -10 (5/16") -10 (5/16") -12 (3/8") -12 (3/8") -12 (3/8") -12 (3/8") -12 (3/8") -12 (3/8") -08 (1/4") -08 (1/4") -10 (5/16") -10 (5/16") -12 (3/8") -12 (3/8") -12 (3/8") -12 (3/8") -12 (3/8") -12 (3/8") Nose 99-7923 99-7923CC 99-7924 99-7924-2 99-7924-4 99-7924CH 99-7926 99-7924CC 99-7923 99-7923CC 99-7924 99-7924-2 99-7924-4 99-7924CH 99-7926 99-7924CC 99-7930 99-7930CC 99-7929 99-7929CC 99-7925 99-7925CC 99-7927 99-7928 99-7928-1 99-7928CC Style Installation - Standard Removal Installation - Standard Installation - Long Installation - XLong Installation - Standard Installation - Short Removal Installation - Standard Removal Installation - Standard Installation - Long Installation - XLong Installation - Standard Installation - Short Removal Installation - Short Removal Installation - Short Removal Installation - Long Removal Installation - Snub Installation - Short Installation - Long Removal Tool Notes 256BT 256BT 256BT 256BT 256BT 256BT 256BT 256BT 2503/2583 2503/2583 2503/2583 2503/2583 2503/2583 2503/2583 2503/2583 2503/2583 SFBTT8 SFBTT8 SFBTT8 SFBTT8 SFBTT8 SFBTT8 SFBTT8 SFBTT8 SFBTT8 SFBTT8 -------------------------------------------------------------------------------------Chisel Clearance Nose -----------------------------------------------------------------------------------------------------------------------Chisel Clearance Nose ------------------------------------------------------------------------------------------------------2.5" Extention 2.5" Extention ----------------------------------1.0" Extention ------------------ Small Diameter Bobtail (Metric) Fastener Size BT BT 10mm 10mm Nose 99-7903 99-7903 Style Installation - Standard Installation - Standard Tool Notes 2503/2583 256BT ----------------------------------- Large Diameter Bobtail (Inch) Fastener Size BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT -16 (1/2") -16 (1/2") -20 (5/8") -20 (5/8") -24 (3/4") -24 (3/4") -28 (7/8") -28 (7/8") -32 (1") -32 (1") -16 (1/2") -16 (1/2") -16 (1/2") -16 (1/2") -20 (5/8") -20 (5/8") -20 (5/8") -20 (5/8") -24 (3/4") -24 (3/4") -24 (3/4") -24 (3/4") -24 (3/4") -24 (3/4") -28 (7/8") -28 (7/8") -32 (1") -32 (1") -16 (1/2") -16 (1/2") -20 (5/8") -20 (5/8") -24 (3/4") -24 (3/4") -16 (1/2") -16 (1/2") -16 (1/2") -16 (1/2") -20 (5/8") -16 (1/2") -16 (1/2") -20 (5/8") -20 (5/8") -24 (3/4") -24 (3/4") Nose 99-7855 99-7855CX 99-7851 99-7851CX 99-7856 99-7852CX 99-7853 99-7853CX 99-7857 99-7857CC 99-7861 99-7868CX 99-7882 99-7882CX 99-7881 99-7881CX 99-7881-2 99-7881-4 N/A 99-7894 99-7894CX 99-7896 99-7864 99-7864CX 99-7863 99-7863CX 99-7867 99-7867CX 99-7825 99-7825CX 99-7821 99-7821CX 99-7826 99-7822CX 99-7845 99-7845CX 99-7835 99-7835CX 99-7831 99-7835 99-7835CX 99-7831 99-7831CX 99-7836 99-7832CX Style Installation - Standard Removal Installation - Standard Removal Installation - Standard Removal Installation - Standard Removal Installation - Standard Removal Installation - Standard Removal Installation - Standard Removal Installation - Standard Removal Installation - 3" Long Installation - 5" Long Installation - Standard Installation - Standard Removal Installation - Long Installation - Standard Removal Installation - Standard Removal Installation - Standard Removal Installation - Standard Removal Installation - Standard Removal Installation - Standard Removal Installation - Standard Removal Installation - Standard Removal Installation - Standard Installation - Standard Removal Installation - Standard Removal Installation - Standard Removal Tool Notes BTT25 BTT25 BTT35 BTT35 BTT57 BTT57 BTT57 BTT57 BTT57 BTT57 SFBTT15 SFBTT15 SFBTT20/SF20 SFBTT20/SF20 SFBTT20/SF20 SFBTT20/SF20 SFBTT20/SF20 SFBTT20/SF20 SFBTT32-24 SF32 SF32 SF32L SF46 SF46 SF46 SF46 SF46 SF46 BTT35LS BTT35LS BTT35LS BTT35LS BTT35LS BTT35LS 2620 2620 2624 2624 2624 2628/3585/3585PT 2628/3585/3585PT 2628/3585/3585PT 2628/3585/3585PT 2628/3585/3585PT 2628/3585/3585PT ----------------------------No Spring ----------------------------No Spring ----------------------------No Spring ----------------------------No Spring ----------------------------No Spring ----------------------------No Spring ----------------------------No Spring ----------------------------No Spring --------------------------------------------------------3/4" Pancake Style ----------------------------No Spring Long Nose ----------------------------Cuts 3/4" & 20mm --------------------------------------------------------------------------------------------------------------------------------------------No Spring ----------------------------No Spring ----------------------------No Spring ----------------------------No Spring ----------------------------No Spring --------------------------------------------------------No Spring ----------------------------No Spring ----------------------------Cuts 20mm & 3/4" Large Diameter Bobtail (Metric) Fastener Size Nose Style Tool Notes BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT BT 12mm 12mm 14mm 14mm 16mm 16mm 20mm 20mm 12mm 12mm 14mm 14mm 12mm 12mm 14mm 14mm 16mm 16mm 16mm 16mm 20mm 20mm 20mm 20mm 20mm 20mm 12mm 12mm 14mm 14mm 16mm 16mm 20mm 20mm 12mm 12mm 12mm 12mm 14mm 14mm 16mm 16mm 20mm 20mm 14mm 16mm 99-7850 99-7850CX 99-7854 99-7854CX 99-7851 99-7851CX 99-7852 99-7852CX 99-7860 99-7860CX 99-7862 99-7862CX 99-7880 99-7880CX 99-7884 99-7884CX 99-7881 99-7881CX 99-7881-2 99-7881-4 N/A 99-7893 99-7894CX 99-7895 99-7865 99-7864CX 99-7820 99-7820CX 99-7824 99-7824CX 99-7821 99-7821CX 99-7822 99-7822CX 99-7840 99-7840CX 99-7830 99-7830CX 99-7834 99-7834CX 99-7831 99-7831CX 99-7832 99-7832CX 99-7891 99-7892 Installation - Standard Removal Installation - Standard Removal Installation - Standard Removal Installation - Standard Removal Installation - Standard Removal Installation - Standard Removal Installation - Standard Removal Installation - Standard Removal Installation - Standard Removal Installation - 3" Long Installation - 5" Long Installation - Standard Installation - Standard Removal Installation - Long Installation - Standard Removal Installation - Standard Removal Installation - Standard Removal Installation - Standard Removal Installation - Standard Removal Installation - Standard Removal Installation - Standard Removal Installation - Standard Removal Installation - Standard Removal Installation - Standard Removal Installation - Standard Installation - Standard BTT25 BTT25 BTT25 BTT25 BTT35 BTT35 BTT57 BTT57 SFBTT15 SFBTT15 SFBTT15 SFBTT15 SFBTT20/SF20 SFBTT20/SF20 SFBTT20/SF20 SFBTT20/SF20 SFBTT20/SF20 SFBTT20/SF20 SFBTT20/SF20 SFBTT20/SF20 SFBTT32-M20 SF32 SF32 SF32L SF46 SF46 BTT35LS BTT35LS BTT35LS BTT35LS BTT35LS BTT35LS BTT35LS BTT35LS 2620 2620 2624/2628/3585/3585PT 2624/2628/3585/3585PT 2624/2628/3585/3585PT 2624/2628/3585/3585PT 2624/2628/3585/3585PT 2628/3585/3585PT 3585PT 3585PT HS37 HS52 -------------No Spring -------------No Spring -------------No Spring -------------No Spring -------------No Spring -------------No Spring -------------No Spring -------------No Spring -------------No Spring --------------------------20mm Pancake Style ----------------------------Cuts 20mm & 3/4" Long Nose ----------------------------Cuts 20mm & 3/4" -------------No Spring -------------No Spring -------------No Spring -------------No Spring -------------No Spring -------------No Spring -------------No Spring -------------No Spring -------------Cuts 20mm & 3/4" --------------------------- Bobtail Obsolete Fastnr Dia. Tool Obs. Nose New Tool New Nose Notes BT BT -12 (3/8") -------------- SFBTT8-12 SFBTT20 Integral -------------- SFBTT8 SF20 99-7928 -------------- -------------------------All Nose are Compatible BT -32 (1") SFBTT46-32 Integral SF46 99-7867 -------------------------- BT 12mm ----------- 99-7820CC ----------- 99-7820CX Removal BTT35LS BT 16mm & -20 (5/8") ----------- 99-7821CC ----------- 99-7821CX Removal BTT35LS BT 20mm ----------- 99-7822CC ----------- 99-7822CX Removal BTT35LS BT 14mm ----------- 99-7824CC ----------- 99-7824CX Removal BTT35LS BT -16 (1/2") ----------- 99-7825CC ----------- 99-7825CX Removal BTT35LS BT -24 (3/4") ----------- 99-7826CC ----------- 99-7822CX Removal BTT35LS BT 12mm ----------- 99-7830CC ----------- 99-7830CX Removal 3585/2628 BT 16mm & -20 (5/8") ----------- 99-7831CC ----------- 99-7831CX Removal 3585/2628 BT 20mm & -24 (3/4") ----------- 99-7832CC ----------- 99-7832CX Removal 3585/2628 BT 14mm ----------- 99-7834CC ----------- 99-7834CX Removal 3585/2628 BT -16 (1/2") ----------- 99-7835CC ----------- 99-7835CX Removal 3585/2628 BT 20mm & -24 (3/4") ----------- 99-7836CC ----------- 99-7832CX Removal 3585/2628 BT 12mm ----------- 99-7840CC ----------- 99-7840CX Removal 2620 BT -16 (1/2") ----------- 99-7845CC ----------- 99-7845CX Removal 2620 BT 12mm ----------- 99-7850CC ----------- 99-7850CX Removal BTT25 BT 14mm ----------- 99-7854CC ----------- 99-7854CX Removal BTT25 BT -16 (1/2") ----------- 99-7855CC ----------- 99-7855CX Removal BTT25 BT 16mm & -20 (5/8") ----------- 99-7851CC ----------- 99-7851CX Removal BTT35 BT 20mm & -24 (3/4") ----------- 99-7852CC ----------- 99-7852CX Removal BTT57 BT -28 (7/8") ----------- 99-7853CC ----------- 99-7853CX Removal BTT57 BT 20mm & -24 (3/4") ----------- 99-7856CC ----------- 99-7852CX Removal BTT57 BT -16 (1/2") ----------- 99-7861CX ----------- 99-7868CX Removal SFBTT15 BT 12mm ----------- 99-7880CC ----------- 99-7880CX Removal SF20/SFBTT20 BT 14mm ----------- 99-7884CC ----------- 99-7884CX Removal SF20/SFBTT20 BT 16mm ----------- 99-7881CC ----------- 99-7881CX Removal SF20/SFBTT20 BT -16 (1/2") ----------- 99-7882CC ----------- 99-7882CX Removal SF20/SFBTT20