_________________ are intended for power drilling use only, the centre point locates the bit and the flat steel on either side cuts away the timber.(a) Wood auger bits(b) Timber bits(c) Carbide insert bits(d) Flat wood bitsI have been asked this question in quiz.Origin of the question is Drilling and Road Making Equipments in chapter Construction Equipments of Construction & Building Materials

_________________ are intended for power drilling use only, the centre

1.	_________________ are intended for power drilling use only, the centre point locates the bit and the flat steel on either side cuts away the timber.(a) Wood auger bits(b) Timber bits(c) Carbide insert bits(d) Flat wood bitsI have been asked this question in quiz.Origin of the question is Drilling and Road Making Equipments in chapter Construction Equipments of Construction & Building Materials
Answer» Correct choice is (d) Flat wood bits For EXPLANATION I would say: Flat wood bits are USED to drill fairly large holes and they GIVE a flat bottom hole, so are ideal where the HEAD of screw or bolt needs to be recessed into the TIMBER. Always use these bits before drilling the clearance hole for the Bolt.

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