Straight Flute HSS Step Drill Bit Set for Metal Working

• Type: Center Drill Bit
• Material: High Speed Steel
• Usage: Metal Drilling
• Transport Package: Iron Box
• Specification: QC
• Trademark: total
• Model NO.: T3-12
• Origin: China
• HS Code: 8207509500
• Production Capacity: 10000set/Month

Product Description

HSS Step Drills Sets (3pcs step drills set): Art No.: 30602007
4-12 x 9 step
4-20 x 9 step
4-30 x 14 step
Material: HSSM2


Metric System Step Drills
 

HOLE SIZE	STEP	SHANK DIA.	OVERALL LENGHT
3.0-12.0	10step	6
4.0-12.0	5step	6/6.5	55
4.0-12.0	9step	6/6.5	65
4.0-20.0	9step	8	75
4.0-20.0	9step	10	85
4.0-22.0	10step	10
4.0-30.0	13step	10	97
4.0-30.0	14step	10	100
4.0-39.0	13step	10	107
6.0-20.0	8step	8
6.0-26.75	7step	13	91
6.0-30.0	12step	10
6.0-30.5	7step	13	85
6.0-32.0	8step	10	75
6.0-36.0	10step	13	90
6.0-37.0	7step	10	69
6.0-37.0	12step	10	100
6.0-38.0	11step	13	96
6.0-38.0	12step	10	100
6.0-40.0	16step	13	105
20.0-30.0	11step	13	97
30.0-40.0	11step	13	97