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U drill / Indexable drill

The U-drill bits from Sharpfine have received high praise from users.
According to customer requirements, we can produce U-drill bits with a length-to-diameter ratio of up to 5 times or even larger. Currently, the largest diameter we have customized for customers is 90mm.


     
               5D U drill , 3D U drill and 4D U drill product photographs

    Feature

  1. The cutting edge is formed by the overlap of two indexable carbide inserts. The inner insert edge passes through
    the center, while the rotating diameter of the outer insert edge’s tip equals the diameter of the drilled hole.

  2. The spiral groove provides a greater chip discharge capacity.

  3. The U drill is equipped with an internal cooling system design. The coolant flows to the cutting site through internal
    cooling holes, and effective cooling helps reduce cutting temperatures and remove chips, extending the lifespan of the inserts.



           U drill      U drill
                   The U drill / Indexable drill is equipped with an internal cooling system design




 U drill’s Indexable Insert 

U drill
U drill’s Insert UM-PUD25 with PUC-G (SiCrTiAlN) new coating

Suitable for processing various general materials, the friction coefficient

is smaller, and the surface quality will be better.
U drill


U drill’s Insert UM-PUD40 with PUC (TiAlN) coating

Suitable for processing stainless steel.




U drill - 3D / Indexable drill - Length = 3 x Diameter


      U drill      U drill



    3D U drill 　

Designation  size (mm) / Размер
dc dm L1 L2 Ls L d Inserts Screw Wrench
Тип  Плас винт Ключ
HSD3-170-2006 17 20 51 68 50 118 28 SOLT06T206 SIC022050 370 T7x35
HSD3-180-2506 18 25 54 71 56 127 33
HSD3-190-2506 19 25 57 75 56 131 33
HSD3-200-2507 20 25 60 78 56 134 33 SOLT070308 SIC025065 370 T7x35
HSD3-210-2507 21 25 66 85 56 141 33
HSD3-220-2507 22 25 66 85 56 141 33
HSD3-230-2507 23 25 69 89 56 145 33
HSD3-240-3208 24 32 72 92 60 152 42 SOLT080308 SIC030072 370 T9x40
HSD3-250-3208 25 32 78 96 60 156 42
HSD3-260-3208 26 32 81 99 60 159 42
HSD3-270-3208 27 32 81 103 60 163 42
HSD3-280-3208 28 32 84 106 60 166 42
HSD3-290-3210 29 32 87 110 60 170 42 SOLT10T308 SIC035100AS 365 T15x45
HSD3-300-3210 30 32 90 113 60 173 42
HSD3-310-4010 31 40 93 117 70 185 48
HSD3-320-4010 32 40 96 120 70 188 48 SOLT10T308 SIC035100AS 365 T15x45
HSD3-330-4010 33 40 99 124 70 192 48
HSD3-340-4011 34 40 102 127 70 195 48 SOLT110408 SIC035100AS 365 T15x45
HSD3-350-4011 35 40 105 131 70 199 48
HSD3-360-4011 36 40 108 134 70 202 48
HSD3-370-4011 37 40 111 138 70 206 48
HSD3-380-4011 38 40 114 141 70 209 48
HSD3-390-4013 39 40 117 145 70 213 48 SOLT130508 SIC045100A 365 T20x45
HSD3-400-4013 40 40 120 148 70 216 48
HSD3-410-4013 41 40 123 152 70 220 48
HSD3-420-4013 42 40 126 155 70 223 48
HSD3-430-4013 43 40 129 159 70 227 48
HSD3-440-4013 44 40 132 162 70 230 48



U drill - 4D / Indexable drill - Length = 4 x Diameter


     U drillU drill



    4D U drill 　

Designation size (mm) / Размер
dc dm L1 L2 Ls L d Inserts Screw Wrench
Тип  Плас винт Ключ
HSD4-170-2006 17 20 68 85 50 135 28  SOLT06T206 SIC022050 370 T7x35
HSD4-180-2506 18 25 72 89 56 145 33
HSD4-190-2506 19 25 76 94 56 150 33
HSD4-200-2507 20 25 80 98 56 154 33 SOLT070308 SIC025065 370 T7x35
HSD4-210-2507 21 25 84 103 56 159 33
HSD4-220-2507 22 25 88 107 56 163 33
HSD4-230-2507 23 25 92 112 56 168 33
HSD4-240-3208 24 32 96 116 60 176 42 SOLT080308 SIC030072 370 T9x40
HSD4-250-3208 25 32 100 121 60 181 42
HSD4-260-3208 26 32 104 125 60 185 42
HSD4-270-3208 27 32 108 130 60 190 42
HSD4-280-3208 28 32 112 134 60 194 42
HSD4-290-3210 29 32 116 139 60 199 42 SOLT10T308 SIC035100AS 365 T15x45
HSD4-300-3210 30 32 120 143 60 203 42
HSD4-310-4010 31 40 124 145 70 216 48
HSD4-320-4010 32 40 126 152 70 220 48 SOLT10T308 SIC035100AS 365 T15x45
HSD4-330-4010 33 40 132 157 70 225 48
HSD4-340-4011 34 40 136 161 70 229 48 SOLT110408 SIC035100AS 365 T15x45
HSD4-350-4011 35 40 140 166 70 234 48
HSD4-360-4011 36 40 144 170 70 237 48
HSD4-370-4011 37 40 148 175 70 243 48
HSD4-380-4011 38 40 152 179 70 247 48
HSD4-390-4013 39 40 156 184 70 252 48 SOLT130508 SIC045100A 365 T20x45
HSD4-400-4013 40 40 160 188 70 256 48
HSD4-410-4013 41 40 164 193 70 261 48
HSD4-420-4013 42 40 168 197 70 265 48
HSD4-430-4013 43 40 172 202 70 271 48
HSD4-440-4013 44 40 176 206 70 274 48



U drill - 5D / Indexable drill - Length = 5 x Diameter

   U drillU drill





    5D U drill 　

Designation size (mm) / Размер
dc dm L1 L2 Ls L d Inserts Screw Wrench
Тип  Плас винт Ключ
HSD5-170-2006 17 20 85 102 50 152 28  SOLT06T206 SIC022050 370 T7x35
HSD5-180-2506 18 25 90 107 56 163 33
HSD5-190-2506 19 25 95 113 56 169 33
HSD5-200-2507 20 25 100 118 56 174 33 SOLT070308 SIC025065 370 T7x35
HSD5-210-2507 21 25 105 124 56 180 33
HSD5-220-2507 22 25 110 129 56 185 33
HSD5-230-2507 23 25 115 135 56 191 33
HSD5-240-3208 24 32 120 140 60 200 42 SOLT080308 SIC030072 370 T9x40
HSD5-250-3208 25 32 125 146 60 206 42
HSD5-260-3208 26 32 130 151 60 211 42
HSD5-270-3208 27 32 135 157 60 217 42
HSD5-280-3208 28 32 140 162 60 222 42
HSD5-290-3210 29 32 145 168 60 228 42 SOLT10T308 SIC035100AS 365 T15x45
HSD5-300-3210 30 32 150 173 60 233 42
HSD5-310-4010 31 40 155 176 70 246 48
HSD5-320-4010 32 40 160 186 70 256 48 SOLT10T308 SIC035100AS 365 T15x45
HSD5-330-4010 33 40 165 190 70 260 48
HSD5-340-4011 34 40 170 195 70 265 48 SOLT110408 SIC035100AS 365 T15x45
HSD5-350-4011 35 40 175 201 70 271 48
HSD5-360-4011 36 40 180 206 70 276 48
HSD5-370-4011 37 40 185 212 70 282 48
HSD5-380-4011 38 40 190 217 70 287 48
HSD5-390-4013 39 40 195 223 70 293 48 SOLT130508 SIC045100A 365 T20x45
HSD5-400-4013 40 40 200 228 70 298 48
HSD5-410-4013 41 40 205 234 70 304 48
HSD5-420-4013 42 40 210 239 70 309 48
HSD5-430-4013 43 40 215 245 70 315 48
HSD5-440-4013 44 40 220 250 70 320 48


  Reference hyperlink:   Threading tool,  External D,  Parting tools.