Clarkson-Osborn

#31 Bright Finish HSS Left Hand Jobber Drill Bit DR03231

HSS Bright finish 118° Degree point Left hand twist - used in screw machine operations with left hand spindle rotation Can also be used as a screw extractor for drilling out broken studs or fasteners...

#31 Bright Finish HSS Stub Drill Bit DR78431

HSS Bright finish 118° Degree split point for fast penetration and accurate starting (self-centering) which eliminates "walking" and reduces the thrust force needed The short flute and overall length...

#31 Bright Finish Slow Spiral Jobber Drill Bit DR72231

HSS Bright finish 118° Degree point Slow spiral flute design - to be used for applications in brass, fiberglass, hard rubber and plastics The wide flutes and low helix angle allow a greater volume of...

#31 Carbide Tipped Jobber Drill Bit SC04231

Bright finish (TiN and TiAIN coatings available) 118° Degree point Regular spiral HSS body, carbide tip provides excellent wear resistance Recommended for drilling cast iron, composites, aluminum...

#31 Cobalt Aircraft Extension Drill Bit DR64731

Cobalt drills offer increased hardness, toughness and better wear resistance compared to regular HSS Gold oxide surface finish provides a polished finish and prevents chip building, galling and...

#31 Cobalt Jobber Drill Bit DR09231

Cobalt jobber drills offer increased hardness, toughness and better wear resistance compared to regular HSS Gold oxide surface finish provides a polished finish and prevents chip building, galling...

#31 Cobalt Stub Drill Bit DR12831

Cobalt stub drills offer increased hardness, toughness and better wear resistance compared to regular HSS Gold oxide surface finish provides a polished finish and prevents chip building, galling and...

#31 Cobalt Taper Length Drill Bit DR29231

Cobalt drills offer increased hardness, toughness and better wear resistance compared to regular HSS Gold oxide surface finish provides a polished finish and prevents chip building, galling and...

#31 HSS Aircraft Extension Drill Bit DR64231

HSS Black oxide finish for increased wear resistance and added lubricity 135° Degree split point for fast penetration and accurate starting (self-centering) which eliminates "walking" and reduces the...

#31 HSS Aircraft Extension Drill Bit DR65231

HSS Black oxide finish for increased wear resistance and added lubricity 135° Degree split point for fast penetration and accurate starting (self-centering) which eliminates "walking" and reduces the...

#31 HSS Chucking Reamer RE17231

HSS Bright finish Straight shank Right hand cut Straight flute Straight flute reamers are used in general purpose reaming applications in ferrous and non-ferrous materials Clarkson Osborn Catalog

#31 HSS Half Round Jobber Drill Bit DR53231

HSS Black oxide finish for increased wear resistance and added lubricity 118° Degree point These drills allow greater chip clearance and have less tendency to run out in deeper hole applications. As...