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Home --> Power tools accessory >masonry drill bits  > high helix masonry drill bits

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The helix means rate of twist in the drill. In other words, high helix masonry drill bits can be applied at high speed for drilling in hard concrete. Made of high carbon steel with carbide tipped on the point, it is also designed 118-degree point which is helpful to drill at a smooth pace and its spiral flute can eject concrete dust or chip out of holes while drilling.

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 High helix Masonry Drill Bits

* Made of high carbon steel with industrial grade carbide tip for long life and efficient drilling.
* Milled high helix for quick, easy debris removal.
* Hardened core for extra strength and reduced breakage.
* For use with percussion drills.
* High helix, 118-degree point. Engineered with higher helix for drilling in hard concrete,
aggregates and similar materials.
* Surface treatment are available:  Galvanized finish, Nickel Plated, Chrome coated, Sandblasted finish.
* From size 12mm or 1/2" use reduced shank.
* Drill set are available.

Size are available ( Metric size DIN 8039 ):

Item No.
Dia. mm
Overall Length
Item No.
Dia. mm
Overall Length
HHM1001 
3
89mm
HHM1101
1/8"
3.5"
HHM1002 
4
100mm
HHM1102
5/32"
4"
HHM1003 
5
100mm
HHM1103
3/16"
4"
HHM1004
6
100mm
HHM1104
1/4"
4"
HHM1005
6
150mm
HHM1105
1/4"
6"
HHM1006
6
200mm
HHM1106
1/4"
8"
HHM1007
6
300mm
HHM1107
1/4"
12"
HHM1008
 8 100mm
HHM1108
5/16"
4"
HHM1009
8
 150mm
HHM1109
5/16"
6"
 HHM1010 
8
200mm
HHM1110
5/16"
8"
HHM1011
8
300mm
HHM1111
5/16"
12"
HHM1012
10
 100mm
HHM1112
3/8"
4"
HHM1013
10
150mm
HHM1113
3/8"
6"
HHM1014
10
 200mm
HHM1114
3/8"
8"
HHM1015
10
300mm
HHM1115
3/8"
12"
HHM1016
12
 150mm
HHM1116
1/2"
6"
HHM1017
12
200mm
HHM1117
1/2"
8"
HHM1018
12
300mm
HHM1118
1/2"
12"
HHM1019
13
150mm
HHM1119
9/16"
6"
HHM1020
13
200mm
HHM1120
9/16"
8"
HHM1021
14
150mm
HHM1121
9/16"
12"
HHM1022
14
200mm
HHM1122
5/8"
6"
HHM1023
14
300mm
HHM1123
5/8"
8"
HHM1024
16
 150mm
HHM1124
5/8"
12"
HHM1025
16
200mm
HHM1125
11/16"
6"
HHM1026
 16
300mm
HHM1126
11/16"
8"
HHM1027  18  150mm
HHM1127
 11/16"
12"
HHM1028
18
 200mm
HHM1128
3/4"
6"
HHM1029
18
300mm
HHM1129
3/4"
8"
HHM1030
19
 150mm
HHM1130
3/4"
12"
HHM1031
19
 200mm
HHM1131
 7/8" 
6"
 HHM1032   19  300mm   HHM1132  7/8"  8"
 HHM1033   20  150mm  HHM1133 7/8"  12"
 HHM1034  20  200mm  HHM1134  1"  6"
 HHM1035  20  300mm  HHM1135  1"   8 "
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 HHM1136
  1" 12"
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                               Letterman United Corp. Taiwan     No. 177, Wun-Ya St. Wu-Chi , Taichung 435, Taiwan.

                                TEL : 886-4-26567334  FAX : 886-4-26567342   E-mail : letterman888@seed.net.tw or letterman999@gmail.com

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