Alfa Tools FB61490 Prolunga punta Forstner 5/16 x 5".

Brand:Alfa Tools

4.1/5

€
53.35

Codolo di estensione della punta Forstner di Alfa Tools. ID canna da 8 mm, diametro gambo 10 mm, lunghezza totale 5 pollici.

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EAN: 0721511721276

Categories: Strumenti e miglioramento della casa, Utensili elettrici e manuali, Parti e accessori per utensili elettrici, Parti e accessori per trapani elettrici, Punta del trapano, Punte da trapano Forstner,

Quantità: 1 per confezione. Design di alta qualità. Lunghezza totale 5 pollici, gambo 3/8 pollici. Diametro interno del barilotto da 5/16 pollici. Gambo di estensione della punta Forstner.

Batteries Included?	‎No
Batteries Required?	‎No
Brand	Alfa Tools
Brand	‎Alfa Tools
Customer Reviews	5.0 5.0 out of 5 stars 11 ratings 5.0 out of 5 stars
Included Components	‎Alfa Tools
Item Dimensions LxWxH	5 x 0.63 x 0.63 inches
Item Dimensions LxWxH	‎5 x 0.63 x 0.63 inches
Item model number	‎FB61490
Item Package Quantity	‎1
Item Weight	‎0.634 ounces
Manufacturer	‎Alfa Tools
Measurement System	‎Metric
Minimum Bore Diameter	0.75 Inches
Minimum Bore Diameter	‎0.75 Inches
Part Number	‎FB61490
Product Dimensions	‎5 x 0.63 x 0.63 inches
Shank Type	Straight
Shank Type	‎Straight
Surface Recommendation	‎Metal,Steel,Wood
Tool Flute Type	Straight
Tool Flute Type	‎Straight

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Scritto da: Ken 30000

8mm or 5/16 opening

The ID appears to be 8 mm. A 5/16 drill bit (which is 7.95 mm) rattles slightly when the set screws are backed out, therefore I believe it is metric. 4 Shank 2 pair set screws are 90 degrees from each other so it may allow centering the shaft of the bit if you are using a 5/16 inch shafted bit. You only have .05 to make up with the set screws. My Fisch 8mm shafted forstener bit fit. It is sturdy and the shaft outside diameter is 5/8 or 15.88 mm (perhaps 16 mm). I don't have a micrometer, but from drilling with a 15 mm forstener bit, it will not follow into the hole. If you are drilling beyond the depth of your forstener bit, it must be 16mm or greater bit. This Alfa forstener bit extension I received was flat black rather than silver as shown. It was embossed "Made in Germany" .

Scritto da: Cliff O.

Worked as advertised.

Had to drill a 1" diameter Forstner bit hole 5 inches deep. This extension was a must in order to reach that depth.

Scritto da: Big Bosko

Five Stars

Great piece. Love it.

Scritto da: Bruno H

8mm, not 5/16"

It is clearly printed on the shipping tube that this is for 8mm shank bits, not 5/16". It is a very solidly built extension. Excellant for deep drilling into wood turnings on the lathe. I am very satisfied with this tool.