Step drill bit is a drill bit that has the tip ground down to a different diameter.
The advantage to this style is that both diameters have the same flute characteristics, which keeps the bit from clogging when drilling in softer materials
HSS Titanium Step Drill Bit 4-20mm
9steps:4mm 6mm 8mm 10mm 12mm 14mm 16mm 18mm 20mm
Flute:Straight
Shank:Hexagon
Q1:Can you provide OEM service?
Answer:Yes,OEM is available.we have 30 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.
Q4:How long for production?
Answer:According to the order sizes and quantity,normally in our stock list,we can arrange
Delivery within 7 days after received payment;if out of stock,it will takes around 30-45 days
For production.