BMR TOOLS Helix shank straight flute hss 4241 step drill bit for hole drilling
| Size: | 4-12mm(5steps);4-20mm(9steps);4-32mm(15steps) |
| Material: | 4241/M35(HSS CO 5%) |
| Processing: | Milling |
| Coating: | Bright polishing |
| Tin-Coating |
| Black Coating |
| Amber Coating |
| Step: | 9 Steps |
| Precision: | H7 |
| Application: | Drilling holes on metal |
Step Drill Bit Specification
| NAME | MATERIAL | SIZE | STEPS |
| triangle shank straight flute step drill | HSS4241 | 4.0-12 | 5 |
| 4.0-20 | 9 |
| 4.0-32 | 15 |
| M35 | 4.0-12 | 5 |
| 4.0-20 | 9 |
| 4.0-32 | 15 |
| triangle shank spiral flute step drill | HSS4241 | 4.0-12 | 5 |
| 4.0-20 | 9 |
| 4.0-32 | 15 |
| M35 | 4.0-12 | 5 |
| 4.0-20 | 9 |
| 4.0-32 | 15 |
4-12mm 5steps:4mm 6mm 8mm 10mm 12mm
4-20mm 9steps:4mm 6mm 8mm 10mm 12mm 14mm 16mm 18mm 20mm
4-32mm 15steps::4mm 6mm 8mm 10mm 12mm 14mm 16mm 18mm 20mm 22mm 24mm 26mm 28mm 30mm 32mm
Step Drill Bit Production Line
Processing
Packing and shipping
FAQ
Q1:Can you provide OEM service?
Answer:Yes,OEM is available.we have 10 years OEM experience
Q2:Can I have sample first?
Answer:Yes,we can provide sample before ordering,if you can afford the freight.
Q3:How about the payment?
Answer:Our payment is 30%TT deposit,balance before delivery,against photos of package .
Q4:How long for production?
Answer:According to the order sizes and quantity,normally in our stock list,we can arrange
Delivery within 2 days after received payment;if out of stock,it will takes around 30-45 days
For production.
Q5:Why I choose BMR TOOLS?
Answer:5 years ago,we export our materials through trading company,many cost increased.Since 2015s,BMR TOOLS founded specially for international trade to provide best products to the world,during more than 12 years developing,our quality is accept by our clients from all over the world.we have different quality to match different requirements from clients.
In same price,you will always get best quality and in same quality you will always get best price from BMR TOOLS.
About Us
BMR TOOLS,a professional machinery cutting tools manufacturer founded in 1997s'.More than twenty years’development,BMR TOOLS products covered almost all kinds of cutting tools:Metal working tools,stone working tools,wood working tools,saw Blades.
BMR TOOLS have our own raw material factory and final products production factory and professional sales company.We combinates R&D,manufacture,trading together,decreased many unnecessary costs.
BMR TOOLS adopt advanced CNC equipments to make sure the precision of every BMR TOOLS product.
BMR Tools assure to offer high quality products with favorable process and timely service to our customers.We will develop continuously and make unceasing progress to serve the customers who are always welcomed to our factories and contacted for cooperation.
Contact Us
Factory address
 |  | Houxiang Industrial Park,Danyang City,Jiangsu Province,China |
 | info@bmrtools.com |
 | 86-511-86346621 |
Chinese Office address
 | | South Street of Center Road,Houxiang Town,Danyang City,Jiangsu Province,China |
| sales@bmrtools.com |
| 86-511-86329505 |
BOMA TOOLING SOLUTIONS PVT.LTD
Indian Office address
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BMR TOOLS 1/4" Helix shank straight flute hss 4241 step drill bit for hole drilling 4-20mm Images
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