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Internally cooled drill bit for deep hole machining Featured Image
  • Internally cooled drill bit for deep hole machining
  • Internally cooled drill bit for deep hole machining
  • Internally cooled drill bit for deep hole machining
  • Internally cooled drill bit for deep hole machining
  • Internally cooled drill bit for deep hole machining
  • Internally cooled drill bit for deep hole machining

Internally cooled drill bit for deep hole machining

Short Description:

Tool material:  tungsten steel,cemented carbide, kentanium

Applicable machine: Deep hole machining internal cold drill is suitable for deep hole machining machine tools, such as gun drilling machine, deep hole machining center machine tools. Five axis linkage machine tools, CNC lathes, etc.


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Product Detail

Specification

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Processing case

Workpiece material hardness: HRC28~35

hole depth: 140mm

aperture size: D5.5

recommended parameter: Vc=40m/min fr=0.16mm/r

cutting life: 6000hole

Product advantages

Compared with the less deep hole, the deep hole cooling and iron scrap removal is relatively difficult. It is necessary to control the breaking of iron scraps, but also to control the jumping amount and stability of the tool, otherwise the tool is easy to break the knife or the hole is not straight

The processing of drilling tip is very important, to consider good centering performance, but also pay attention to the dispersion of cutting force! We have 20 years of deep hole processing experience, better able to deal with this kind of problem

The treatment of iron chute is very important. If the iron chute can not be discharged smoothly, the drill bit is easy to break the knife. The requirements of this treatment on the machine tool and the operator are relatively high

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    • Standard deep hole drill bit: Suitable for deep hole machining of steel, cast iron and other materials

    Internally cooled drill bit for deep hole machining-01

    Bit diameter range   d1(m7) Drilling depth ratio (1/d) Cooling mode Shank form Ordering model Basic dimensions(mm) remarks
    Shank diameter Total length Slot length Recommended drilling depth coating
    d2(h6) l1 12 13
    3 ~3.5 12 Internal cooling Straight shank d1*l3*d2*l1*12D 6 90 50 40
    20 Internal cooling Straight shank d1*l3*d2*l1*20D 6 123 83 72
    30 Internal cooling Straight shank d1*l3*d2*l1*30D 6 160 120 108
    3.6~4 12 Internal cooling Straight shank d1*l3*d2*l1*12D 6 90 50 40
    20 Internal cooling Straight shank d1*l3*d2*l1*20D 6 136 96 84
    30 Internal cooling Straight shank d1*l3*d2*l1*30D 6 176 136 124
    4.1~4.5 12 Internal cooling Straight shank d1*l3*d2*l1*12D 6 102 64 56
    20 Internal cooling Straight shank d1*l3*d2*l1*20D 6 148 108 96
    30 Internal cooling Straight shank d1*l3*d2*l1*30D 6 192 152 140
    4.6~4.9 12 Internal cooling Straight shank d1*l3*d2*l1*12D 6 102 64 56
    20 Internal cooling Straight shank d1*l3*d2*l1*20D 6 158 118 106
    30 Internal cooling Straight shank d1*l3*d2*l1*30D 6 208 168 156
    5.0~5.5 12 Internal cooling Straight shank d1*l3*d2*l1*12D 6 116 78 72
    20 Internal cooling Straight shank d1*l3*d2*l1*20D 6 168 128 116
    30 Internal cooling Straight shank d1*l3*d2*l1*30D 6 228 188 170
    5.6~6.0 12 Internal cooling Straight shank d1*l3*d2*l1*12D 6 116 78 72
    20 Internal cooling Straight shank d1*l3*d2*l1*20D 6 180 140 126
    30 Internal cooling Straight shank d1*l3*d2*l1*30D 6 240 200 182
    6.1~6.5 12 Internal cooling Straight shank d1*l3*d2*l1*12D 8 131 93 82
    20 Internal cooling Straight shank d1*l3*d2*l1*20D 8 190 150 132
    30 Internal cooling Straight shank d1*l3*d2*l1*30D 8 260 220 202
    6.6~7 12 Internal cooling Straight shank d1*l3*d2*l1*12D 8 131 92 83
    20 Internal cooling Straight shank d1*l3*d2*l1*20D 8 202 160 143
    30 Internal cooling Straight shank d1*l3*d2*l1*30D 8 270 230 213
    7.1~ 7.5 12 Internal cooling Straight shank d1*l3*d2*l1*30D 8 145 108 95
    20 Internal cooling Straight shank d1*l3*d2*l1*20D 8 213 172 155
    30 Internal cooling Straight shank d1*l3*d2*l1*30D 8 290 250 230
    7.6 ~8 12 Internal cooling Straight shank d1*l3*d2*l1*12D 8 146 108 96
    20 Internal cooling Straight shank d1*l3*d2*l1*20D 8 223 183 163
    30 Internal cooling Straight shank d1*l3*d2*l1*30D 8 305 263 245
    8.1~8.5 12 Internal cooling Straight shank d1*l3*d2*l1*12D 10 160 120 107
    20 Internal cooling Straight shank d1*l3*d2*l1*20D 10 239 195 175
    30 Internal cooling Straight shank d1*l3*d2*l1*30D 10 330 285 263
    8.6~9.0 12 Internal cooling Straight shank d1*l3*d2*l1*12D 10 162 120 108
    20 Internal cooling Straight shank d1*l3*d2*l1*20D 10 249 205 185
    30 Internal cooling Straight shank d1*l3*d2*l1*30D 10 340 295 276
    9.1~9.5 12 Internal cooling Straight shank d1*l3*d2*l1*12D 10 174 131 120
    20 Internal cooling Straight shank d1*l3*d2*l1*20D 10 262 217 195
    30 Internal cooling Straight shank d1*l3*d2*l1*30D 10 360 315 291
    9.6~10 12 Internal cooling Straight shank d1*l3*d2*l1*12D 10 174 132 120
    20 Internal cooling Straight shank d1*l3*d2*l1*20D 10 272 228 206
    30 Internal cooling Straight shank d1*l3*d2*l1*30D 10 372 328 305
    10.1~10.5 12 Internal cooling Straight shank d1*l3*d2*l1*12D 12 204 156 144
    20 Internal cooling Straight shank d1*l3*d2*l1*20D 12 292 242 220
    10.6~11 12 Internal cooling Straight shank d1*l3*d2*l1*12D 12 204 156 144
    20 Internal cooling Straight shank d1*l3*d2*l1*20D 12 300 250 228
    11.1~12 12 Internal cooling Straight shank d1*l3*d2*l1*12D 12 204 156 144
    20 Internal cooling Straight shank d1*l3*d2*l1*20D 12 325 275 250
    12~ 13 12 Internal cooling Straight shank d1*l3*d2*l1*12D 14 230 182 168
    20 Internal cooling Straight shank d1*l3*d2*l1*20D 14 338 290 265
    13.1~ 14 12 Internal cooling Straight shank d1*l3*d2*l1*12D 14 230 182 168
    20 Internal cooling Straight shank d1*l3*d2*l1*20D 14 367 318 290
    14.1~ 16 12 Internal cooling Straight shank d1*l3*d2*l1*12D 14 260 208 194
    16.1~18 12 Internal cooling Straight shank d1*l3*d2*l1*12D 14 286 234 218
    Applicable table of processed materials very suitable suitable
    number Processed materials
    Mild steel HB≤180 Carbon and alloy steels Pre hardened steel, hardened steel stainless steel cast iron Ductile iron aluminium alloy heat-resisting alloy
    ~40HRC ~50HRC ~60HRC

    remarks

    1.The handle is straight by default. If you need other handle standards, please refer to our handle materials or drawings for confirmation;
    2. The default top angle is 140 or 135 degrees. If other angles are required, please mark or refer to the drawing;
    3. If the order parameters are inconsistent with our company’s, you can inform our customer service personnel, and we will be enthusiastic to provide you with drawings for confirmation;

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