Clarkson-Osborn

#28 Bright Finish HSS Jobber Drill Blank DR75228

Premium HSS Bright finish Made to the same length as jobber length drills Can be used as punches, gauges, pins or ground for special tools Clarkson Osborn Catalog

#28 Bright Finish HSS Left Hand Jobber Drill Bit DR03228

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...

#28 Bright Finish HSS Stub Drill Bit DR78428

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...

#28 Bright Finish Slow Spiral Jobber Drill Bit DR72228

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...

#28 Carbide Tipped Jobber Drill Bit SC04228

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...

#28 Cobalt Aircraft Extension Drill Bit DR64728

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...

#28 Cobalt Jobber Drill Bit DR09228

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...

#28 Cobalt Stub Drill Bit DR12828

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...

#28 Cobalt Taper Length Drill Bit DR29228

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...

#28 HSS Aircraft Extension Drill Bit DR64228

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...

#28 HSS Aircraft Extension Drill Bit DR65228

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...

#28 HSS Chucking Reamer RE17228

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