Center Drills
Type A, B and R center drills for standard stock supply and drawing-based requirements.
60° angle (as illustrated):The most common center-drill angle, producing a hole that precisely matches the point of a lathe center (currently in stock).
82° angle:Starts drilling from a conical recess and allows imperial countersunk screws to sit perfectly flush.
90° angle:Uses the same process as 82° and allows metric countersunk screws to sit perfectly flush.
Titanium nitride (TiN) coating:Withstands higher temperatures and wear than an uncoated center drill, while retaining a sharp cutting edge for longer.

15 matching sizes
| Product code | Type | Designation | Small diameter d | Large diameter D | Overall length L | Unit | Materials | Quantity |
|---|---|---|---|---|---|---|---|---|
CDDIN333AD0050 | 172 A型 | 0.5 | 0.5 | 3.15 | 31.5 | mm | ||
CDDIN333AD0063 | 172 A型 | 0.63 | 0.63 | 3.15 | 31.5 | mm | ||
CDDIN333AD0070 | 172 A型 | 0.7 | 0.7 | 3.15 | 31.5 | mm | ||
CDDIN333AD0080 | 172 A型 | 0.80 | 0.8 | 3.15 | 31.5 | mm | ||
CDDIN333AD0100 | 172 A型 | 1.0 | 1 | 3.15 | 31.5 | mm | ||
CDDIN333AD0125 | 172 A型 | 1.25 | 1.25 | 3.15 | 31.5 | mm | ||
CDDIN333AD0160 | 172 A型 | 1.6 | 1.6 | 4 | 35.5 | mm | ||
CDDIN333AD0200 | 172 A型 | 2.0 | 2 | 5 | 40 | mm | ||
CDDIN333AD0250 | 172 A型 | 2.5 | 2.5 | 6.3 | 45 | mm | ||
CDDIN333AD0315 | 172 A型 | 3.15 | 3.15 | 8 | 50 | mm | ||
CDDIN333AD0400 | 172 A型 | 4.0 | 4 | 10 | 56 | mm | ||
CDDIN333AD0500 | 172 A型 | 5.0 | 5 | 12.5 | 63 | mm | ||
CDDIN333AD0630 | 172 A型 | 6.3 | 6.3 | 16 | 71 | mm | ||
CDDIN333AD0800 | 172 A型 | 8.0 | 8 | 20 | 80 | mm | ||
CDDIN333AD1000 | 172 A型 | 10.0 | 10 | 25 | 100 | mm |
Can't find the size you need? Custom production is available.Submit custom email
