Specifications

1.) Step drill bits
2.) Spiral flute
3.) Step drill, bright finished
4.)HSS steel
5.) ISO9001

1.) Step drill bits
2.) Spiral flute
3.) Step drill, bright finished
4.)HSS steel
5.) ISO9001

Step drills are ground from solid high speed steel. A range of hole diameters can be drilled using only one tool and holes are deburred automatically by the following step.

*Suitable for drilling in alloyed and non alloyed steel sheet, pipes and profiles upto 950N/mm2 and upto a wall thickness of 5mm. Also suitable for wood and plastics.
*Spiral flut gives the faster drilling speed and faster dust rejection. 

1.) Step drill bits
2.) Spiral flute
3.) Step drill, bright finished
4.)HSS steel
5.) ISO9001

Step drills are ground from solid high speed steel. A range of hole diameters can be drilled using only one tool and holes are deburred automatically by the following step.

*Suitable for drilling in alloyed and non alloyed steel sheet, pipes and profiles upto 950N/mm2 and upto a wall thickness of 5mm. Also suitable for wood and plastics.
*Spiral flut gives the faster drilling speed and faster dust rejection.

Size	Diameter List	Overall Length(mm)	Step QTY.
4-12mm	4,5,6,7,8,9,10,11,12mm	65mm	9
4-22mm	4,6,8,10,12,14,16,18,20,22mm	80mm	10
4-32mm	4,6,8,10,12,14,16,18,20,22,24,26,28,30,32mm	105mm	15
6-38mm	6,9,13,16,19,21,23,26,29,32,35,38mm	100mm	12
6-40mm	6,11,17,23,29,30,31,32,33,34,35,36,37,38,39,40mm	105mm	16
10-20mm	10,11,12,13,14,15,16,17,18,19,20mm	88mm	11