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Home --> Power tools accessory >masonry drill bits  > Concrete Drill Bits

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How to drill into concrete in a proper way is to choose quality concrete or masonry drill bits first.  Drill a shallow hole first as pilot hole at regular speed and then use some force against wall, especially if the hand drill is low power one. Whatever your drill is heavy duty, automatic or low power drill,  to pull your drill out and to press back it again is necessary because drill bits need to cool for a few second and at same time remove debris. 5 kinds of concrete drill bits are listed below.

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MDB-500 Series

MDB-600 Series

MDB-700 Series

Concrete Drill Bits, Black & Silver
( Flute Type A )
Concrete Drill Bits, Chrome coated
( Flute Type B )
Cut shank
Concrete Drill Bits,  Nickel Plated
( Flute Type C )
Tri-shank

 

MDB-800 Series

MDB-900 Series

Concrete Drill Bits, Gold & Silver
( Flute Type D )
Tri-shank
 Concrete Drill Bits with hex shank, Chrome coated
( Flute Type B )

* This drill bit is machined from high carbon steel with carbide tipped cutting edge.
* Black groove, edge polished.
* High quality for the professionals.
* For use on rotary and percussion drills.
* For drilling in concrete, reinforced concrete, brick, block and masonry, etc.
* Other surface treatment are available:  Galvanized finish, Nickel Plated,
Chrome coated, Black finish, Sandblasted finish.   
* From 11mm or 7/16" use reduced shank.
* Drill set are available.

Size are available ( Metric size DIN 8039 ):

Item No. 
Dia. Inch
Item No.
Dia. X OAL
MDB5001
1/8" x 2-3/8"
MDB5101
3 x 60mm
MDB5002
9/64" x 3"
MDB5102
4 x 75mm
MDB5003
5/32" x 3"
MDB5103
5 x 85mm
MDB5004
11/64" x 3-3/8"
MDB5104
5 x 150mm
MDB5005
3/16" x 3-3/8"
MDB5105
5.5 x 85mm
MDB5006
3/16" x 6"
MDB5106
6 x 100mm
MDB5007
13/64" x 3-3/8"
MDB5107
6 x 150mm
MDB5008
7/32" x 3-3/8"
MDB5108
6.5 x 100mm
MDB5009
15/64" x 4"
MDB5109
7 x 100mm
MDB5010
1/4" x 4"
MDB5110
8 x 120mm
MDB5011
1/4" x 6"
MDB5111
8 x 150mm
MDB5012
9/32" x 4"
MDB5112
9 x 120mm
MDB5013
5/16" x 4-3/4"
MDB5113
10 x 120mm
MDB5014
5/16" x 6"
MDB5114
10 x 150mm
MDB5015
11/32" x 4-3/4"
MDB5115
11 x 150mm
MDB5016
3/8" x 4-3/4"
MDB5116
12 x 150mm
MDB5017
3/8" x 6"
MDB5117
13 x 150mm
MDB5018
13/32" x 6"
MDB5118
14 x 150mm
MDB5019
7/16" x 6"
MDB5119
15 x 150mm
MDB5020
15/32" x 6"
MDB5120
16 x 160mm
MDB5021
1/2" x 6"
MDB5121
17 x 160mm
MDB5022
9/16" x 6-5/16"
MDB5122
18 x 160mm
MDB5023
5/8" x 6-5/16"
MDB5123
19 x 160mm
MDB5024
11/16" x 6-5/16"
MDB5124
20 x 160mm
MDB5025
3/4" x 6-5/16"
MDB5125
21 x 160mm
MDB5026
13/16" x 6-5/16"
MDB5126
22 x 160mm
MDB5027
7/8" x 6-5/16"
MDB5127
23 x 160mm
MDB5028
15/16" x 6-5/16"
MDB5128
24 x 160mm
MDB5029
1" x 6-5/16"
MDB5129
25 x 160mm

                               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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