Details
135 degree split point jobber high speed black oxide surface treated drill bits 1/4" x 4".
diameter: 1/4"
Straight shank, 135° split point, steam oxide treated, high speed steel Champion 705SP-1/4 series heavy duty NAS907-B split point jobber drill.
Heavy duty 135° split point for self centering and quick penetration. Heavy duty web geometry provides added rigidity. Recommended for drilling high tensile martensitic stainless steels, titanium alloys and hard steel. Very popular in truck and trailer manufacturing.