Nc Spotting Twist Drill Bits
Zhenjiang Scharp Machinery Tools Co., Ltd.- Customized：Non-Customized
- Standard：DIN, JIS, AISI
- Length：Jobber-length
- Type：Twist Drill Bit
- Material：High Speed Steel
- Usage：Metal Drilling
Base Info
- Model NO.：standard
- Size：3mm to 20mm
- Transport Package：on request
- Specification：3-30MM
- Trademark：stc
- Origin：Jiangsu
- HS Code：82075090
- Production Capacity：5000PCS,Month
Description
Basic Info.
Model NO. standard Size 3mm to 20mm Transport Package on request Specification 3-30MM Trademark stc Origin Jiangsu HS Code 82075090 Production Capacity 5000PCS/MonthProduct Description
SPOTTING AND CENTERING:
Nc spotting dril bits are designed for centering operations. Nc spotting dril bits feature short overall and flute lengths, this provides increased rigidity, which reduces run out. Available in both Left and Right hand.
High speed steel NC Spotting and center Drill
TWO RH SPIRAL FLUTES - 120° DRILL POINT
(Also available with 90° Drill point)
Centering and chamfering can be accomplished in a single operation left hand on request
| Nominal diameter Dh8 inch | Flute Length L2 inch | Overall length L1 inch |
| 1/8" | 5/8" | 2-1/2" |
| 3/16" | 3/4" | 2-1/2" |
| 1/4" | 1" | 2-1/2" |
| 3/8" | 1-1/4" | 3" |
| 1/2" | 1-1/4" | 3" |
| 5/8" | 1-1/8" | 3" |
| 3/4" | 1-1/8" | 3" |
| 1" | 1-1/8" | 3" |
| Nominal diameter Dh8 mm | Flute Length L2 mm | Overall length L1 mm |
| 3 | 8 | 46 |
| 4 | 9 | 55 |
| 5 | 10 | 62 |
| 6 | 15 | 66 |
| 8 | 17 | 79 |
| 10 | 20 | 89 |
| 12 | 25 | 102 |
| 16 | 35 | 115 |
| 20 | 40 | 131 |
| 25 | 50 | 151 |
| 30 | 50 | 160 |