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Article code:
EAN / GTIN:
Manufacturer number:
Cat. No.:
Jobber drill, extra long HSS-E FS, uncoated, ⌀ DC h8 × overall length L: 9X320mm
Article no.: 722079
Catalog no.: 116250
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 | |
| Cooling lubricant | yes | |
| Manufacturer’s designation | Spiralbohrer überlang HSS-E | |
| Interface position | on the machine | |
| Holder type | plain shank | |
| Interface coding | ZYL00900100 | |
| Holder shape | Standard | |
| Shank diameter DS | 9 mm | |
| Length of shank LS | 100 mm | |
| Holder diameter, upper dimension | 0 mm | |
| Holder diameter, lower dimension | -0.022 mm | |
| Cutter diameter, min. Dc min. | 9 mm | |
| Configurable | no | |
| Tolerance of cutter diameter | tolerance class ISO | |
| Tolerance class ISO | h8 | |
| Body diameter D4 | 9 mm | |
| Flute length Lc | 220 mm | |
| Distance from cutter corner to cutter tip | 2.098 mm | |
| Number of teeth Z | 2 | |
| Twist direction | right-hand | |
| Helix angle, min. | 38.536 degrees | |
| Helix pitch | 35.5 mm | |
| Angle, 1st step | 130 degrees | |
| Point geometry | C | |
| Product designation (type) | FS | |
| Tool material | HSS-E | |
| Standard designation for cutting medium, 2nd Priority | HSS-E | |
| Standard designation for cutting medium, 3rd Priority | HSS-E | |
| Machining group | K (cast iron); M (stainless steel); N (non-ferrous metals); P (steel) | |
| Cutting media, manufacturer’s designation | HSS-ECo | |
| Coating | uncoated | |
| Interface | joint 1 | |
| Tolerance class | h8 | |
| upper dimension of nominal diameter | 0 mm | |
| lower dimension of nominal diameter | -0.022 mm | |
| Gauge length A | 222 mm | |
| Usable length L1 | 220 mm | |
| Overall length L | 320 mm | |
| Functional length | 220 mm | |
| Max. speed | 2’210 min-1 | |
| Weight | 76 g | |
| Cutting direction | right-hand cutting | |
| Tool version | solid steel | |
| Standard | DIN 1869 | |
| Data carriers | without data carrier | |
| Machining method | core drilling (BAB); drilling into solid material (BVB) | |
| Colour ring | without | |
| Type of product | indexable drill | |
| recommended maximum drilling depth | 206.5 mm | |
| Content | single part |
Identification & Classification
| Article number | 722079 | |
| Catalog number | 116250 | |
| EAN / GTIN | 4062406266059 | |
| Manufacturer number | 116250 9X320 | |
| Manufacturer/responsible person | Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Germany, www.hoffmann-group.com |
Application Table
N
55
N
30
P
32
P
25
P
20
P
5
M
8
M
4
K
20
Description
Version:
With precision ground point.
Special 4-chamfer relief ground for very good guidance within the bore. Bright finish flutes, nitrided chamfers.
With point geometry shape C.
Special 4-chamfer relief ground for very good guidance within the bore. 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