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Article code:
EAN / GTIN:
Manufacturer number:
Cat. No.:
NC reamer H7, uncoated, Nominal ⌀ DC mm or inch: 5/16
Article no.: 699850
Catalog no.: 162900
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 | |
| Interface position | on the machine | |
| Holder type | Plain shank | |
| Shank diameter | 8 mm | |
| Shank length | 80 mm | |
| Cutter diameter 1st step min. | 7.94 mm | |
| Configurable | no | |
| Boring out allowance | 0.1 mm | |
| Hole to be created 1st step, ISO tolerance class | H7 | |
| Hole to be created 1st step, upper dimension | 0.012 mm | |
| Hole to be created 1st step, lower dimension | 0.006 mm | |
| Cutting edge length | 33 mm | |
| Number of teeth | 6 | |
| Twist direction | left-hand | |
| Balancing quality | F/12000 | |
| Graduation | unequal spacing | |
| Taper lead angle | 45 degrees; 45 degrees | |
| Taper lead form | 0,5 | |
| Type of reaming tool | for through holes | |
| Guide elements present | no | |
| Type of drive | machine reamer | |
| 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); S (difficult-to-machine materials) | |
| Cutting media, manufacturer’s designation | HSS-E | |
| Coating | uncoated | |
| Interface | joint 1 | |
| Gauge length | 80 mm | |
| Overall length | 117 mm | |
| Max. speed | 5,000 min-1 | |
| Cutting direction | right-hand cutting | |
| Tool version | solid steel | |
| Standard | Werksnorm | |
| Data carriers | without data carrier | |
| Machining method | boring out | |
| Colour ring | green | |
| Type of product | cylindrical reamer | |
| Content | single part |
Identification & Classification
| Article number | 699850 | |
| Catalog number | 162900 | |
| EAN / GTIN | 4062406146757 | |
| Manufacturer number | 162900 5/16 | |
| Manufacturer/responsible person | Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Germany, www.hoffmann-group.com |
Application Table
N
20
N
20
P
15
P
10
P
7
P
5
P
4
M
5
M
5
S
5
K
5
N
13
Description
Version:
Version suitable for NC similar to DIN 212 with straight shank ⌀ for standard chucking especially in hydraulic chucks or high precision collet chucks. For highest concentricity and process reliability. No need to order special collets.
With long flutes and left-hand helix.
≤ ⌀ size 1.7 with 3 teeth; ≥ ⌀ size 1.8 even number of teeth and irregular spacing. ≤ ⌀ size 3.7 both ends with centre points; ≥ ⌀ size 3.8 both ends with centre holes.
Reamer manufacturing or cutting edge tolerance to DIN1420 for H7 bore tolerance.
With long flutes and left-hand helix.
≤ ⌀ size 1.7 with 3 teeth; ≥ ⌀ size 1.8 even number of teeth and irregular spacing. ≤ ⌀ size 3.7 both ends with centre points; ≥ ⌀ size 3.8 both ends with centre holes.
Reamer manufacturing or cutting edge tolerance to DIN1420 for H7 bore tolerance.