3pcs Metric Sizes Straight Flute HSS Step Drill Bit sets in plastic box

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US $3.4-5.9 / Sets | 1 Set/Sets Samples are free for Step Drill Bit sets (Min. Order)
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Quick Details
Place of Origin:
Jiangsu, China (Mainland)
Brand Name:
Model Number:
TY11-157-Step Drill Bit sets
Core Drill Bit
High Speed Steel, HSS W4; HSS W9; HSS M2; HSS Co 5%
Metal Drilling
Product Name:
Step Drill Bit sets
Straight Flute
Straight Shank
Surface Trearment:
Bright finished, Tin-coated.
up to 1-3/8"
Surface finishing:
Titanium coated/Bright Finished
4-32mm, 4-20mm, 4-12mm
3pcs packed in wooden box
1 set
Piece/Pieces per Month Stable Quality, Guaranteed Delivery, Professional Service
Packaging & Delivery
Packaging Details
3PCS packed in one wooden box, then in carton
Shanghai, Ningbo
Lead Time :
30~45 days according to the order quantity of Step Drill Bit set
Product Catalogue

Main Product Catalogue



3pcs Metric Straight Flute HSS Step Drill Bit sets 

1. M2, M35 are available

2. 3PCS step drill set in wooden box

3. For all materials in sheet

4..Wall thickness up to 4mm

5. Tin-coated



Material HSS W4/W9/M2/M35
Flute typeStraight flute
Shank Straight Shank
Surface treatmentBright Finished, Tin-coated.
Point Angle 118 degree point

For drilling in sheet, pipes and workpieces

Pakcing: 1.  Single piece packed in clam shell
 2.  Step drill in sets are available. 




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. 







3 PCS STEP DRILL SET in Wooden Box / 3pcs HSS step drill bit set

Size :  1. 4-30mm, 6-20, 4-12mm

             2. 4-32mm,  4-20mm,  4-12mm

Contact Us

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 Company:  Danyang Tongyu Tools Co.,Ltd.
 Name:  Gary Zhao  (Sales Manager)
 Tel:  +86-511-86325949
 Fax:  +86-511-86333850


 QQ:  2574352579
 Wechat/Skype:  tongyutools10
 Web:  http://www.tongyutools.com

  gary @tongyutools.com