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EAN / GTIN:
Manufacturer number:
Cat. No.:
DIN counterbore for tapping drill holes, uncoated, Counterbore ⌀ D1 ×pin ⌀ D2: 20X10,2mm
Article no.: 244424
Catalog no.: 156220
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 | 0.16 mm/rev. | |
| Wet maximum | suitable | |
| Interface position | on the machine | |
| Holder type, joint 1 | plain shank | |
| Interface coding | ZYL01250105 | |
| Holder shape | plain shank | |
| Holder version | metric | |
| Holder size, metric | 12,5 mm | |
| Holder tolerance class | h9 | |
| Arbor size | 12,5 | |
| Diameter of shaft DS | 12.5 mm | |
| Length of shank LS | 40 mm | |
| Cooling lubricant | yes | |
| Manufacturer’s designation | DIN-Flachsenker für Kernloch | |
| Cutter diameter, min. Dc min. | 20 mm | |
| Configurable | no | |
| Tolerance of cutter diameter | manufacturer tolerance | |
| For hole diameter d | 10.2 mm | |
| Flute length Lc | 22 mm | |
| Number of teeth Z | 3 | |
| Twist direction | right-hand | |
| Angle, 1st step | 180 degrees | |
| Pilot pin | with fixed guiding pin | |
| Pin diameter D2 | 10.2 mm | |
| Tool material | HSS | |
| Machining group | N (non-ferrous metals); P (steel) | |
| Cutting media, manufacturer’s designation | HSS | |
| Coating | uncoated | |
| Interface | joint 1 | |
| Usable length L1 | 60 mm | |
| Overall length L | 100 mm | |
| Weight | 100 g | |
| Cutting direction | right-hand cutting | |
| Tool version | solid steel | |
| Standard | DIN 373 | |
| Machining method | subland drilling (SPL) | |
| Type of product | subland drill | |
| Feed in | steel < 500 N/mm2 | |
| Content | single part |
Identification & Classification
| Article number | 244424 | |
| Catalog number | 156220 | |
| EAN / GTIN | 4045197087966 | |
| Manufacturer number | 156220 20X10,2 | |
| 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.