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Manufacturer number:
Cat. No.:
DIN counterbore for tapping drill holes, uncoated, Counterbore ⌀ D1 ×pin ⌀ D2: 6,5X2,5mm
Article no.: 244417
Catalog no.: 156220
Article code:
Offers
Product details
Technical Data
| Through-coolant | no | |
| Entry of cooling lubricant | without cooling lubricant entry | |
| Escape of cooling lubricant | without cooling lubricant exit | |
| Cooling lubricant | yes | |
| Manufacturer’s designation | DIN-Flachsenker für Kernloch | |
| Interface position | on the machine | |
| Holder type | plain shank | |
| Holder shape | Standard | |
| Shank diameter DS | 5 mm | |
| Length of shank LS | 31.5 mm | |
| Cutter diameter, min. Dc min. | 6.5 mm | |
| Configurable | no | |
| Tolerance of cutter diameter | manufacturer tolerance | |
| For hole diameter d | 2.5 mm | |
| Flute length Lc | 14 mm | |
| Number of teeth Z | 3 | |
| Twist direction | right-hand | |
| Helix angle, min. | 27 degrees | |
| Angle, 1st step | 180 degrees | |
| Pilot pin | with fixed guiding pin | |
| Pin diameter D2 | 2.5 mm | |
| Pin length | 4 mm | |
| Tool material | HSS | |
| Cutting media, manufacturer’s designation | HSS | |
| Coating | uncoated | |
| Interface | joint 1 | |
| Gauge length A | 40 mm | |
| Usable length L1 | 40 mm | |
| Overall length L | 71 mm | |
| Weight | 11 g | |
| Cutting direction | right-hand cutting | |
| Standard | DIN 373 | |
| Machining method | subland drilling (SPL) | |
| Type of product | subland drill | |
| Content | single part |
Identification & Classification
| Article number | 244417 | |
| Catalog number | 156220 | |
| EAN / GTIN | 4045197087898 | |
| Manufacturer number | 156220 6,5X2,5 | |
| Article class | 11M | |
| Manufacturer/responsible person | Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Germany, www.hoffmann-group.com |
Application Table
N
33
P
28
P
27
P
27
Description
Version:
Three edged, spiral fluted counterbore with fixed pilot for tapping drill holes.
Application:
For counterboring socket head screws DIN 912, 6912, 7984 and slotted cheese head screws ISO 1207 (DIN 84).
The pilot diameter matches the tapping hole diameter.
The pilot diameter matches the tapping hole diameter.