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Quick Details

  • Place of Origin: Jiangsu, China (Mainland)
  • Brand Name: TONGYU
  • Model Number: TY10-181-reduced shank drill bit
  • Type: Twist Drill Bit
  • Material: High Speed Steel
  • Use: Metal Drilling
  • Item name: reduced shank drill bit
  • Processing: Milled and welding
  • Point angle: 118 Degree
  • Material 1: HSS 4241( HRC60-61)
  • Shank: 1/2" reduced shank
  • Surface finishing: Black Oxide/Bright
  • Material 2: HSS 4341 (HRC 62-64)
  • Material 3: HSS M2
  • Material 4: HSS Co5% (M35)
  • Package: Aluminium case

Packaging & Delivery

Packaging Details Aluminium case
Delivery Time 35-55 days


1. Guaranteed HSS material
2. Aluminium Case
3. 1/2" reduced shank
4. Fully heat treatment

Aluminium Case 8 pcs Set of  Silver and Deming 1/2"  HSS Reduced Shank Drill Bit 



1. Standard:Silver and Deming(1/2" reduced shank)
2. Processing:


2. Material:

HSS 4241(W2MoCr4V), HSS 4341(W4Mo3Cr4V), 

HSS 6542(W6Mo5Cr4V2), M35 (W6Mo5Cr4V2Co5)

3. Hardness:

HSS4241: HRC59-61; HSS4341:HRC62-64,

HSS 6542:64-65; HSS M35:HRC 66-67

4.Surface finishing:black oxide;bright;Black&Golden color
5. Point Angle:118 Degree
6. Application:

designed for making large diameter holes in steel and other hard metals.  The bit is for drill presses with ½-inch chucks or larger.

7. Size:

9/16",5/8",3/4",13/16",7/8", 15/16", 1"

8. Packing:

 Inner: Aluminium Box,

 Outer:8 sets in an Exporting Carton



Wooden case type is also available.

5 pcs 1/2" Reduced Shank Silver and Deming Drill Bit Set


A number of cartons were packed in pallet to avoid any breakage.


 In addition, the quality of HSS tools are basically decided by HSS raw material and heat treatment.

We can keep a strict control of these procedure.


Other kinds of metal drilling tools is also avaible. You can click into our website for more information.



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

Hope you will enjoy a comfortable cooperation with us!

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China (Mainland) | Trading Company
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Supplier Assessments:
2 Transactions 2,000+
The supplier’s transactions conduted via Alibaba.com in the past 6 months.
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Supplier's Trade Assurance Limit: US $181,000
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