46pcs high quality wooden case combination drill bit set for metal,concrete,wood&plastic 

13pcs titanium coated twist drill bit, Size:2,2.5,3,3.5,4,4.5,5,5.5,6,6.5,7,7.5,8mm 

8pcs black&sliver masonry drill bit,size 3mm,4mm,5mm,6mm,7mm,8mm,9mm,10mm

4pcs Zin coated masonry drill bit, size 6mm,8mm,10mm,12mm

5pcs Wood Working Forstner bit,size:15MM,20MM,25MM,30MM,35MM

5pcs Wood working drill bit,size:4mm,5mm,6mm,8mm,10mm

10pcs bit: SL3,SL5,SL7,T10,T20,T25,T30,PZ1,PZ2,PZ3

1 bit holder

We also supply  other Drill bit set and combination drill bit set

Q&A:

Question 1: Are you professional manufacturer or foreign trade company of hss twist drill bit line?

Answer: Danyang Boyu Tools Co., Ltd. is a professional manufacture and trader for all kinds of cutting tools in China. Since we have advanced management system, strong technical power and modern inspection instruments, our products have been exported to many countries and regions in Europe, America, Australia and Southeast Asia with a high reputation.

Question 2: What are your main products?

Answer: our main products are all kinds of HSS twist drill bits and drill sets, SDS-plus drill bits,wood working drill bits, Masonry drill bits, HSS hole saws, Taps & Dies, Diamond Saw Blades, TCT Circular Saw Blades.

Question 3: What material standard you using now regarding twist drill bit?

Answer: We are using HSS standard of: HSS M35Co%, HSSM2(6542),HSS 9341, HSS4341, HSS4241.

Question 4: Can you supply sample test and your samples are free?

Answer: Yes, we can supply samples customer need. According to our company rule, customer should pay the samples and the postage, and we promise we will definitely return the postage to you when we cooperation.