




Product Name | Double Fluted Step Drill Bit | Surface treatment | Nitriding |
Features | Imperial | Shank type | 3/8" Hex Shank |
Size | 7/8 -3/8 | 19 Step Sizes | 3/16", 9/32", 3/8", 7/16", 17/32", 5/8", 11/16", 25/32", 7/8", 29/32". 31/32", 1", 1-1/16", 1-1/8", 1-5/32", 1-7/32", 1-9/32", 1-5/16", 1-3/8" |
Material | HSS6542 | Apply for | Cutting Metal Hole |

Twist Drill Factory: 18 Years of Precision Excellence
With 18 years of expertise, our twist drill factory specializes in premium metal drill bits, wood drill bits, and annular cutters,
trusted by global brands. Certified to ISO9001, CE, RoHS, BSCI, and ICS standards, plus multiple industry-specific
certifications, we guarantee unmatched quality and compliance.
Spanning 20,000 square meter, our facility houses CNC automation and advanced machining centers,ensuring precision
and efficiency. Rigorous quality control underpins every product, exported to North/South America, Europe, the Middle
East, and beyond.
Choose a partner built on innovation, scale, and reliability. Elevate your projects with drills engineered to
outperform.
Contact us to source world-class drilling solutions!




A: We are 15 years+ professional manufacturer in drill bit tools industry. Welcome to visit our company. We guarantee our products are factory price, very cheap and competitive.
Q2: Do you provide samples? Is it free or extra?
A: Yes. We could offer the samples for free charge but do not pay the cost of freight.
Q3: Why is your price higher than other companies?
A: Because we are doing our own brand: the quality of the products is absolutely guaranteed.
Q4: What is the MOQ?
A: We have fixed MOQ for each of our products. But if you need less, it's ok, as we will change the price according to your quantity.
Q5: What is your term of payment?
A: 30% by TT in advance, and balance before delivery.
Q6: How long is your delivery time?
A: Generally it is 7-10 days if the goods are in stock. Or it is 20-30 days if the goods are not in stock, it is according to quantity.