Slow spiral is sometimes preferred for drilling end grain in wood.  |Ideal for fast drilling operations in open grained material.  |These drills are not for use with routers and not suitable for masonry work.
Specification:
D=5/16 inch|D=7.9 mm|OL=117 mm|Shank Dia=Drill Chuck
    
    
    Specification:
D=5/16 inch|D=7.9 mm|OL=117 mm|Shank Dia=Drill Chuck
        12 months
    
    
 
    
     
                     
                     
                     
                     
                     
                     
                     
                     
                     
             
             
             
            