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Solid carbide short stepped drill 90°, TiAlN, for threads: M12
Article no.: 311868
Catalog no.: 125050
Article code:
Product details
Technical Data
| Through-coolant | no | |
| Entry of cooling lubricant | without cooling lubricant entry | |
| Escape of cooling lubricant | without cooling lubricant exit | |
| Feed f | 0.18 mm/rev. | |
| Wet maximum | suitable | |
| Interface position | on the machine | |
| Holder type | plain shank | |
| Interface coding | ZYL01400100 | |
| Holder shape | plain shank | |
| Holder version | metric | |
| Holder size, metric | 14 mm | |
| Dry machining | suitable only under restricted conditions | |
| Holder tolerance class | h6 | |
| Shank diameter DS | 14 mm | |
| Length of shank LS | 45 mm | |
| Shank type | HA | |
| Cooling lubricant | yes | |
| Manufacturer’s designation | VHM-Kernloch-Kurzstufenbohrer 90°, TiAlN, für Gewinde: M12 | |
| Cutter diameter, min. Dc min. | 10.2 mm | |
| Cutter diameter, max. Dc max. | 13.5 mm | |
| Configurable | no | |
| Tolerance of cutter diameter | tolerance class ISO | |
| Tolerance class ISO | h8 | |
| Number of steps | 2 | |
| Index of step | 1; 2 | |
| Cutter diameter step Dc | 10.2 mm; 13.5 mm | |
| Step length L3 | 30 mm | |
| Step angle | 90 degrees | |
| Flute length Lc | 60 mm | |
| Distance from cutter corner to cutter tip | 1.85 mm | |
| Number of teeth Z | 2 | |
| Twist direction | right-hand | |
| Angle, 1st step | 140 degrees | |
| Step angle | 90 degrees | |
| Product designation (type) | N | |
| Application for type of drilling | blind hole | |
| Tool material | solid carbide | |
| Machining group | K (cast iron); M (stainless steel); N (non-ferrous metals); P (steel); S (difficult-to-machine materials) | |
| Cutting media, manufacturer’s designation | VHM TIALN | |
| Coating | TiAlN | |
| Interface | joint 1 | |
| Tolerance class | h8 | |
| Gauge length A | 62 mm | |
| Usable length L1 | 33.5 mm | |
| Overall length L | 107 mm | |
| Functional length | 105.15 mm | |
| Cutting direction | right-hand cutting | |
| Tool version | solid carbide | |
| Standard | DIN 8378 | |
| Machining method | drilling into solid material (BVB); profile drilling (BPB) | |
| Colour ring | without | |
| Type of product | stepped drill | |
| Feed in | steel < 1100 N/mm2 | |
| Content | single part |
Identification & Classification
| Article number | 311868 | |
| Catalog number | 125050 | |
| EAN / GTIN | 4045197064936 | |
| Manufacturer number | 125050 M12 | |
| Article class | 11E | |
| Manufacturer/responsible person | Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Germany, www.hoffmann-group.com |
Application Table
N
260
N
180
N
180
P
90
P
90
P
90
P
60
P
35
M
35
M
30
S
25
K
110
N
180
Description
Version:
Very sturdy − step length to DIN 8378. Tight concentricity tolerances between drill and counterbore ⌀ guarantee exact alignment.
Application:
Particularly suitable for NC machines and automatic machines. For drilling tapping holes to DIN 336 sheet 1 with 90° countersinking. In the following operation, the tap therefore does not have to cut into the sharp edge of the hole.
Sizes F: Tapping holes for the following fluteless taps.
Sizes F: Tapping holes for the following fluteless taps.