Stappen boor / Getrapte boor / Step drill
This equipment is safety category 6: Other equipment with no limits.
This equipment is Noise Category 3: Can be used at all hours. No limits.
Om gaten in plaat materiaal te maken (tot 1.5mm). We hebben er 3. Zet de DeWalt boor op stand '1' en de boor kolom op langzaam.
This in addition to the normal, jobber length, HSS and cobalt drills that are next to the two pillar drills in the wood and metal shop. Or check the page Category:Boren for a full list.
For drilling hole in sheet material. Also see the Large HSS drills and Grote Gaten Zaag - Large Hole Saw.
Speed
Keep the speed low (50% or less of normal speed). A bout half of a normal HSS twist drill of that diameter.
Breaking Drills
If you break them - that is fine. Happens.
In that case - either replace them -or- report it to the mailing list so someone else can replace them.
You can expense these.
Vervangen
Koop rustig nieuwe bij de Gamma als ze bot zijn of bestel in China - die zijn een heel stuk beter & goedkoper - en declareer het bedrag bij de penningmeester (tot 20 euro per 3).
Location
One box in the wood shop; several sets in the metal shop. Metaalwerkplaats - rode bakjes.
Eigendom en geschiedenis
Eigendom van de Space. Worden regelmatig vervangen.
See also
The Wood Drills and Mechanics Drill bit, Korte Boren, DIN1897
The Grote_Gaten_Zaag_-_Large_Hole_Saw, Large HSS drills en Boorsnelheid RPM / drilling speed
