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Manufacturer number:
Cat. No.:
Solid carbide NC spotting drill 142° spiral flutes, uncoated, ⌀ DC h6: 4mm
Article no.: 188547
Catalog no.: 121070
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 | |
| Holder tolerance class | h$06 | |
| Shank diameter DS | 4 mm | |
| Shank length LS | 28 mm | |
| Cutter diameter, min. Dc min. | 4 mm | |
| Cutter diameter, max. Dc max. | 4 mm | |
| Configurable | no | |
| Tolerance of cutter diameter | tolerance class ISO | |
| Tolerance class ISO | h6 | |
| Flute length Lc | 10 mm | |
| Distance from cutter corner to cutter tip | 2 mm | |
| Number of teeth Z | 2 | |
| Twist direction | right-hand | |
| Helix angle, min. | 30 degrees | |
| Angle, 1st step | 142 degrees | |
| Point geometry | N | |
| Product designation (type) | N | |
| Tool material | solid carbide | |
| Cutting media, manufacturer’s designation | VHM | |
| Coating | uncoated | |
| Interface | joint 1 | |
| Gauge length A | 12 mm | |
| Usable length L1 | 10 mm | |
| Overall length L | 40 mm | |
| Weight | 7 g | |
| Cutting direction | right-hand cutting | |
| Tool version | solid carbide | |
| Standard | Werksnorm | |
| Machining method | drilling into solid material (BVB) | |
| Colour ring | without | |
| Type of product | spotting drill | |
| Content | single part |
Identification & Classification
| Article number | 188547 | |
| Catalog number | 121070 | |
| EAN / GTIN | 4045197038630 | |
| Manufacturer number | 121070 4 | |
| Manufacturer/responsible person | Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Germany, www.hoffmann-group.com |
Application Table
N
200
N
180
P
80
Description
Version:
Exactly central ground point. Easy spot drilling and high shape accuracy of the centre hole. Sturdy due to short flutes.
≥ ⌀ 6 mm with HB drive flat.
≥ ⌀ 6 mm with HB drive flat.
Application:
Point angle 142° so that the cutting edges of the following twist drill engage easily.
Note:
Use the speed for the actual hole ⌀ (not generally the speed for the drill outer ⌀).