Audited Supplier
Customized
JIS
Jobber-length
Twist Drill Bit
High Speed Steel
Wood Drilling
HSS Twist Drill Bits
OSTAR or OEM
Plastic Bag,Double Bilster with Color Card,Carton
58-66HRC
China
Product Description
| HSS twist drill bits | |
| Standard | 0.3-20.0mm for DIN338, 20.5-35.0 Overall length for 157mm, 1/16"-1/2", 17/32"-1" Overall length for 157mm |
| Material | HSS,HSS Co, Tungsten Carbide etc. |
| Process | Fully Ground |
| Point Angel | 118 degree |
| Shank | Straight shank drills, Hex shank ,taper shank drills,1/2 shank drills |
| Degree | 118 or 135 point angle |
| Process | Roll forged, edge ground, full ground, milled |
| Hardness | 58-66HRC |
| Surface finish | Black finish, TiN Coated, bright finished, black oxide, nit riding etc. |
| Color | White, yellow, black, grey etc. |
| Usage | Metal Drilling, Stainless steel, aluminum etc. |
| Under 6mm | RPM :1000-1300 |
| 6mm-8mm | RPM:800-1300 |
| 8-10mm | RPM:650-800 |
| Up10mm | RPM:450-550 |
Drill bits are cutting tools used to create cylindrical holes, almost always of circular cross-section. Bits are held in a tool called a drill, which rotates them and provides torque and
Axial force to create the hole. Specialized bits are also available for non-cylindrical-shaped holes.
Different surface treatment of HSS twist drill bits
Black Oxide---is an inexpensive black coating. A black oxide coating provides heat resistance and lubricity, as well as corrosion resistance. Coating increases the life of HSS bits.
Titanium Nitride (TIN) --is a very hard ceramic material that can be used to coat a high speed steel bit (usually a twist bit), extending the cutting life by three or more time. However, when the bit is sharpened the new edge, will not have the benefits of the coating.
Cobalt drill bits---are specially designed for drilling in hard steel, thick web helix delivers fast material removal combined with increased durability for maximum
Ostar Tools Main products and New Products:
- Oscillating blades kit
- Mixed blade sets
- Oscillating multi tools
- Titanium coated blades
- Adaptor for multi tool
- Sawing tool
- Grout removal tool
- Grinding tool
- Scraping tool
- Sanding tool
- Cutting tool
- Jigsaw Blades
- Recirocating saw blades
- Dimond saw blade
- TCT circular saw blade
FAQ:
Q1: Do you have your own brand?
A1: Yes, the brand name is OSTARTOOLS, we can provide OEM services to our customers as well.
Q2: What's your target market?
A2: We mainly focus on European and Noth America right now.
Q3: What is the biggest advantage compared to the rivals?
A3: We are one of the strongest oscillating multi tool saw blades suppliers in China.
Q4: What is your MOQ?
A4: 500 pcs/blade
Q5: What about the payment and delivery time?
A5: Delivery time: Within 30days after receiving your advance payment.
Payment: 30% by T/T in advance, 70% against the copy of B/L.(or other)
Q6: Can I get some samples?
A6: Yes, we are honored to offer you samples for quality check.
Q7: How does your factory do regarding quality control?
A7: Quality is priority. PROFI People always attach great importance to quality control from the very beginning to the end of the production. Every product will be carefully tested before it's packed for shipment.
