ST

ST1221JD-A標準直徑氣動工具專用刀具

ST Drill (ST1221JD-A Standard)

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刀具-航太專用ST1221JD-A標準直徑氣動工具專用刀具
  • 產品標準:符合NAS波音航空維修技術標準刀具
  • 產品用途:當航空材料鑽孔完成後、需要用氣動工具做倒角擴孔、以便讓航空螺絲 很精準與航空材料密切結合、不會產生風阻、減少航空事故。
  • 產品材質: in - HSS-CO4
unit:in
ST1221JD-A HSS Co 4-8% Piloted 100° Countersink
Order Code Flute Pilot
DIA.
Body
DIA.
Pilot
Length
Body
Length
Cutter
Path
Angle
Threded
Shank
Threded
Length
THD.
Relief
Locating
Angle
Total
Length
Z A B C F α1 THD D(in) -- α2 L
ST1221JD-A-065 3 0.0650 0.250 0.093 0.75 100° 1/4-28 0.312 0.03 120° 0.375
ST1221JD-A-096 3 0.0960 0.250 0.108 0.75 100° 1/4-28 0.312 0.03 120° 0.375
ST1221JD-A-126 3 0.1260 0.500 0.123 0.75 100° 1/4-28 0.312 0.03 120° 0.375
ST1221JD-A-145 3 0.1450 0.500 0.140 0.75 100° 1/4-28 0.312 0.03 120° 0.375
ST1221JD-A-158 3 0.1580 0.500 0.140 0.75 100° 1/4-28 0.312 0.03 120° 0.375
ST1221JD-A-190 3 0.1900 0.500 0.155 0.75 100° 1/4-28 0.312 0.03 120° 0.375
ST1221JD-A-203 3 0.2030 0.500 0.162 0.75 100° 1/4-28 0.312 0.03 120° 0.375
ST1221JD-A-234 3 0.2340 0.500 0.170 0.75 100° 1/4-28 0.312 0.03 120° 0.375
ST1221JD-A-238 3 0.2380 0.500 0.170 0.75 100° 1/4-28 0.312 0.03 120° 0.375
ST1221JD-A-252 3 0.2520 0.625 0.188 0.75 100° 1/4-28 0.312 0.03 120° 0.375
ST1221JD-A-266 3 0.2660 0.625 0.193 0.75 100° 1/4-28 0.312 0.03 120° 0.375
ST1221JD-A-285 3 0.2850 0.625 0.204 0.75 100° 1/4-28 0.312 0.03 120° 0.375
ST1221JD-A-314 3 0.3140 0.750 0.217 0.95 100° 1/4-28 0.312 0.03 120° 0.375
ST1221JD-A-346 3 0.3460 0.750 0.233 0.95 100° 1/4-28 0.312 0.03 120° 0.375
ST1221JD-A-375 3 0.3750 0.750 0.248 1.15 100° 1/4-28 0.312 0.03 120° 0.375
ST1221JD-A-411 3 0.4110 0.750 0.266 1.15 100° 1/4-28 0.312 0.03 120° 0.375
unit:inch
ST1221JD-A HSS Co 4-8% Piloted 100° Countersink
Axial Rake Angle
Tip Radial Rake Angle
Prinary Clearance Angle
Tip Gash Radian 0.01
Body Hole 0.13