Diamond core bits

WEFRA-service: Re-coating of used diamond core bits

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CHARACTERISTICS
Diamond core drill, soldered, for easy drilling of ceilings and walls of reinforced concrete and brick walls, for general use in structural, civil and underground construction engineering

APPLICATIONS
Concrete, standard reinforced

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BNN-U
Dimension/mm
(ø x length)

Dimension/inch
(ø x length)

rpm
16m/s

Number of segm./Dimensions
in mm
Chuck: 1/2 inch shaft:
52 x 300 2 x 12 6.150
5 / 25 x 3,5 x 8
82 x 300 3 x 12 3.850
7 / 25 x 3,5 x 8
Chuck: 1 1/4 inch UNC-sleeve:
82 x 400 3 x 16 3.850
7 / 25 x 3,5 x 8
102 x 400 4 x 16 3.100
9 / 25 x 4 x 8
122 x 400 5 x 16 2.450
10 / 25 x 4 x 8
152 x 400 6 x 16 2.050
12 / 25 x 4 x 8
200 x 400 8 x 16 1.550
15 / 25 x 4 x 8
For diamond core drilling machines with water-cooling
Other available dimensions, re-coating and "Dry cut" - core bits on request!
1 piece per packing unit


Diamond core drills

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CHARACTERISTICS
Diamond core drill - SET, including:
Diamond core drill with internal screw thread
M16, hexagonal shaft, guide drill, ejector drift,
dry drill for socket holes (
ø 68 mm) and distribution boxes (ø 82 mm)
Good value for money

APPLICATIONS
Lightweight block, red bricks, concrete material (not cured concrete)

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BTN-U
Dimension/mm

Dimension/inch

rpm
80 m/s
Number of segments and coating
68 x M16 2 7/8 x M16 1.400
3 / 7 mm
82 x M16 3 1/4 x M16 1.400
4 / 7 mm
For drills, not to be used on hammer action drills!
1 piece per packing unit