Alpen | Drill Bit SDS-plus F4 Forte 16,0mm X 450/400mm BPM Stock impregnate them with a few

impregnate them with a few drops of light machine oil before you apply the honing compound

wobble-free cabinet shelves

Table: Cast Iron

Holes on the side of the bit allow the removal of glass dust from inside the bit

Alpen | Drill Bit SDS-plus F4 Forte 16,0mm X 450/400mm BPM Stock impregnate them with a fewSDS plus F4 Forte Drill Bit Size: 16. 0 x 450 400mm Range of application The SDS plus hammer drill bit F4 with its patented 4X stepped profile and patented tip Low wear, very long service life High efficiency drill bit for heavy duty drilling in concrete, natural stone and brickwork Strengths Efficient Fast Precise for dowel holes Patented carbide tip Excellent centering properties Patented 4 step profile Fast drill dust feed Low wear, very long