Halco Rock Tools, UK Manufacturer of DTH Hammers and Bits. Halco pioneered the development and distribution of DTH hammers in the 1950s.
Head Designs
Convex Face
 
Strong design for all conditions especially hard abrasive rock.
 
Good balance of fast drilling and long service life.
Flat Face
 
Alternative design for all rock conditions especially fractured and fissured rock and changing formations.
Concave
 
Alternative design for all rock conditions, particularly deep hole drilling can improve hole alignment as a result of inverted pilot.
Halco 4
Part
Number
650580
650931
650932
650936
650969
653249
650933
650466
650925
650444
650445
Diameter
Face
Buttons
mm
108
110
115
115
115
115
120
127
127
140
150
 
Inch
4 1/2
4 5/16
4 1/2
4 1/2
4 1/2
4 1/2
4 3/4
5
5
5 1/2
5 7/8
Design
Concave
Convex
Convex
Convex
Convex
Concave
Convex
Convex
Convex
Convex
Convex
Type
Ballistic
Dome
Dome
Ballistic
Semi Ballistic
Dome/Ballistic
Dome
Dome
Semi Ballistic
Dome
Dome
Qty & Dia
14 x 13mm
15 x 13mm
8 x 14mm / 8 x 13mm
16 x 13mm
16 x 13mm
8 x 13mm / 8 x 13mm
8 x 14mm / 8 x 13mm
16 x 13mm
16 x 13mm
17 x 13mm
17 x 13mm
Drill Bit Overview
Oversize
 
 
 
 
 
Y
Y
Y
Y
Weight
(Kg)
9.5
9.6
9.7
9.7
9.6
9.6
10
11
10.7
12.5
13.5
 
Halco 4.5
Part
Number
653223
653209
653224
653230
653229
653197
653310
Face
Buttons
Oversize
 
 
 
 
Y
Y
Weight
(Kg)
7.96
8.13
9.7
9.7
9.6
9.05
12.3
mm
110
115
115
115
115
127
140
Qty & Dia
14 x 14mm
15 x 14mm
18 x 14mm
8 x 14mm / 10 x 13mm
7 x 13mm / 8 x 14mm
18 x 14mm
9 x 16mm / 9 x 14mm
Inch
4 5/16
4 1/2
4 1/2
4 1/2
4 1/2
5
5 1/2
Design
Convex
Convex
Convex
Flat
Concave
Convex
Concave
Type
Dome
Ballistic
Dome
Dome
Dome
Dome
Dome
DHD 340A
Part
Number
650949
650961
653091
650526
650625
650955
650967
650680
650611
650966
650013
653482
650614
653094
Diameter
Oversize
 
 
 
 
 
 
Y
Y
Y
Y
Y
Y
Face
Buttons
Weight
(Kg)
8.1
8.1
8.5
8.2
8.2
8.3
8.5
10
9.5
9.6
10.6
9.7
10.1
11.8
mm
110
110
110
115
115
115
115
120
127
127
127
127
130
140
 
Inch
4 5/16
4 5/16
4 5/16
4 1/2
4 1/2
4 1/2
4 1/2
4 3/4
5
5
5
5
5 1/8
5 1/2
 
Design
Convex
Convex
Convex
Convex
Concave
Flat
Convex
Concave
Concave
Concave
Convex
Convex
Concave
Concave
Type
Dome
Semi Ballistic
Parabolic
Dome
Dome/S-Ballistic
Dome
Semi Ballistic
Dome/S-Ballistic
Dome
Semi Ballistic
Dome
Ballistic
Dome/S-Ballistic
Dome
Qty & Dia
15 x 13mm
15 x 13mm
14 x 14mm
16 x 13mm
8 x 14 / 6 x 13mm
8 x 13mm / 8 x 13mm
8 x 14mm / 10 x 13mm
8 x 13mm / 8x 13mm
16 x 13mm
16 x 13mm
16 x 13mm
20 x 13mm
8 x 14mm / 8x 13mm
9 x 16mm / 9 x 14mm
 
TD40
Oversize
 
Weight
(Kg)
10
10
Qty & Dia
 
8 x 16 / 6 x 13mm
8 x 16mm / 6 x 13mm
Part
Number
653624
653647
 
Diameter
Face
Buttons
mm
116
116
 
Inch
4 1/2
4 1/2
Design
Flat
Flat
Type
Dome
Parabolic
Halco RC400 - Extra Flushing Design
Oversize
Weight
(Kg)
14.1
14.1
14.3
14.3
36.5
Diameter
Part
Number
653469
653470
653471
653472
653486
Face
Buttons
mm
127
130
133
136
189
Inch
5
5 1/8
5 1/4
5 3/8
7 1/2
Design
Drop Centre
Drop Centre
Drop Centre
Drop Centre
Drop Centre
Type
Dome
Dome
Dome
Dome
Dome
Qty & Dia
12 x 16mm / 2 x 13mm
12 x 16mm / 2 x 13mm
12 x 16mm / 4 x 13mm
12 x 16mm / 4 x 13mm
16 x 16mm / 10 x 13mm
Halco RC400 - Heavy Duty Design
Oversize
 
 
Part
Number
653558
653559
653560
653561
Diameter
Weight
(Kg)
14.2
14.2
14.4
14.4
Face
Buttons
mm
127
130
133
136
Type
Dome
Dome
Dome
Dome
Inch
5 1/8
5 1/4
5 3/8
Design
Drop Centre
Drop Centre
Drop Centre
Drop Centre
Qty & Dia
14 x 16mm / 2 x 13mm
14 x 16mm / 2 x 13mm
14 x 16mm / 4 x 13mm
14 x 16mm / 4 x 13mm  
Additional bit configurations are available on request.