Specifications

1. M2, M35 are available
2. Available for specified requirements.
3. For all materials in sheet
4.. Wall thickness up to 4mm

Spiral Flute HSS Step Drill Bits

 

 

M2 HSS, Titanitrid Coating, M35 HSS-E

1. Available for specified requirements. 

2. For all materials in sheet, pipes and workpieces with a wall thickness up to 4mm

 

 

Material	HSS W4/W9/M2/M35
Flute type	Spiral Flute
Shank	Straight Shank
Surface treatment	Tin-Coated, Nutride Oxide, Bright Finished
Point Angle	118 degree point
Application	For drilling in sheet, pipes and workpieces
Pakcing:	1.  Single piece packed in clam shell
	2.  Step drill in sets are available.

 

 

Advantages: 

1. No Centering required, the drills do not run off center.

2. A variety of hole diameters can be drilled using only one tool, and the tool can display the dimensions. 

3. The dimension of drilled hole is exact. 

4. Holes are de-burred by the following level, and cylindrical bores are produced. 

5. Even very thin-walled materials can be drilled. 

 

 

 

Item NO.	Specification	Steps	OAL	Shank Size	Material
1.3.4.4-1	4-12	5	65mm	6mm	HSS W4/W9/M2/M35
1.3.4.4-2	4-12	9	65mm	6mm	HSS W4/W9/M2/M35
1.3.4.4-3	4-20	9	75mm	8mm	HSS W4/W9/M2/M35
1.3.4.4-4	4-30	14	100mm	10mm	HSS W4/W9/M2/M35
1.3.4.4-5	6-38	12	100mm	10mm	HSS W4/W9/M2/M35
1.3.4.4-6	6-26.75	8	75mm	10mm	HSS W4/W9/M2/M35
1.3.4.4-7	4-39	13	107mm	10mm	HSS W4/W9/M2/M35
1.3.4.4-8	6-32	8	75mm	10mm	HSS W4/W9/M2/M35
1.3.4.4-9	6-30	9	80mm	10mm	HSS W4/W9/M2/M35

 

 

 

 

TONGYU's philosophy is based on three principles: safety, efficiency and precision.

 

Pls. contact us freely for more information, I will reply you ASAP!

 

Hope you will enjoy a comfortable cooperation with us!