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Step Drill

Automatically Deburrs Holes as You Drill.
Nitride Coating for Cooler Running.
High Speed Steel M2 for Long Life.
These Step Drill Bits are Ideal for Stainless
They Also Help to Enlarge Existing Holes.
Straight Groove Triangular Shank

Model Number

SD-20

SD-30

SD-40

Price Check

Data sheets

Model	Code	Steps	Length	Shank Size	Weight	Q’ty/Box	Q’ty/Ctn	Size
SD-20	107779	9	76mm	Ø8x21mm	52g	10pcs	300pcs	4-20mm(4,6,8,10,12,14,16,18,20mm)
SD-30	107780	14	102mm	Ø10x24mm	145g	10pcs	100pcs	4-30mm(4,6,8,10,12,14,16,18,20,22,24,26,28,30mm)
SD-40	107781	13	105mm	Ø10x24mm	242g	10pcs	50pcs	4-39mm(4,6,9,12,15,18,21,24,26,30,33,36,39mm)