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Article code:
EAN / GTIN:
Manufacturer number:
Cat. No.:
Jobber drill extra long HSS FS, uncoated, ⌀ DC h8 × overall length L: 4X220mm
Article no.: 247290
Catalog no.: 116240
Article code:
Product details
Technical Data
| Through-coolant | no | |
| Cooling lubricant | yes | |
| Interface position | on the machine | |
| Holder type | Plain shank | |
| Holder shape | plain shank | |
| Holder version | metric | |
| Holder size, metric | 0040 mm | |
| Type of mounting | spigot | |
| Shank diameter | 4 mm | |
| Shank length | 70 mm | |
| Cutter diameter, min. | 4 mm | |
| Cutter diameter, max. | 4 mm | |
| Configurable | no | |
| Tolerance of cutter diameter | tolerance class ISO | |
| Tolerance class ISO | h8 | |
| Flute length | 150 mm | |
| Distance from cutter corner to cutter tip | 0.9 mm | |
| Number of teeth | 2 | |
| Twist direction | right-hand | |
| Helix angle, min. | 38 degrees | |
| Angle, 1st step | 130 degrees | |
| Point geometry | C | |
| Product designation (type) | FS | |
| Tool material | HSS | |
| Cutting media, manufacturer’s designation | HSS | |
| Coating | uncoated | |
| Interface | joint 1 | |
| Gauge length | 172 mm | |
| Usable length | 146 mm | |
| Overall length | 220 mm | |
| Weight | 16 g | |
| Cutting direction | right-hand cutting | |
| Tool version | solid steel | |
| Standard | DIN 1869 | |
| Machining method | drilling into solid material | |
| Colour ring | without | |
| Type of product | indexable drill | |
| Content | single part |
Identification & Classification
| Article number | 247290 | |
| Catalog number | 116240 | |
| EAN / GTIN | 4045197028679 | |
| Manufacturer number | 116240 4X220 | |
| Manufacturer/responsible person | Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Germany, www.hoffmann-group.com |
Application Table
N
50
N
32
P
28
P
21
K
18
Description
Version:
With precision ground point.
Significantly strengthened core without core taper. Bright finish flutes, nitrided chamfers.
With point geometry shape C.
Significantly strengthened core without core taper. Bright finish flutes, nitrided chamfers.
With point geometry shape C.
Advantage:
Special deep hole drills. For particularly deep or recessed holes. Good chip evacuation due to parabolic flutes, resulting in fewer chip evacuations even in particularly deep holes.
Recommendation:
Maximum drilling depth:
L2 = LC - 1.5 × DC.
L2 = LC - 1.5 × DC.
Note:
Suitable NC spotting drills No. 112120, 112140 and 112170 with 142° tip angle for enhanced process reliability