Carbide Stepped Drill, for Drilling Pilot Holes for Screws, with Chamfering Blade, Size Designation Model

Brand :
MISUMI
Caution
Product Description
[Features]
·No complicated estimates required. It is possible to order part number of stepped drill bit without drawings

Specifications

| Model Number | Tip Diameter D 0.01 mm Increment Designation | Step Length ℓ 1 mm Increment Designation | Chamfer Angles Double Angle θ (Selection) | Large Diameter D1 | ℓ1 | Groove Length L1 | Overall Length L | Shank Diameter d | |
| Nominal M | |||||||||
| C-SC-TSDR | 3 | 2.20 ~2.99 | 5 ~ 13 | 4 | 50 | ℓ+8 | ℓ+ℓ1 | 4 | |
| 4 | 3.00 ~3.89 | 5 ~ 18 | 6 | 59 | ℓ+13 | 6 | |||
| 5 | 3.90 ~4.69 | 8 ~ 23 | 60 | 8 | 61 | ℓ+16 | 8 | ||
| 6 | 4.70 ~6.49 | 10 ~ 28 | 90 | 8 | 62 | ℓ+18 | 8 | ||
| 8 | 6.50 ~8.19 | 15 ~ 35 | 120 | 10 | 69 | ℓ+24 | 10 | ||
| 10 | 8.20 ~9.99 | 15 ~ 45 | 12 | 77 | ℓ+30 | 12 | |||
| 12 | 10.00 ~ 11.00 | 20 ~ 50 | 14 | 86 | ℓ+36 | 14 |
For Cutting Conditions, Refer to >>Click here.
More Information

● Pilot holes for M3-M12 metric coarse thread (boring / chamfering) can be done in a single step to realize a high-efficiency process.
● Since the tip diameter, step length, and chamfering angle can all be chosen freely, the tool shape can be manufactured as you like.
Alterations
| Additional Processing Details | Code | Details |
| TS Coating | TS | With TS Coating |
| TiAℓN Coat | TA | TiAℓN with Coating |


With TS Coating