• Hardiness : drills through iron concrete and concrete
• Performance : plate of an angle of 135°, restore up to 100% the power of the drill
• Reliability : carbide monobloc plate 3 bits of an angle of 120° with auto-centring head
• Long lasting : the squared helix enables the dust to go out faster and increase the longevity of the drill, less breakable than other concrete drills
• Useful length 100 mm for 160 mm drills and 250 mm for 310 mm drills
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