Mini drilling rods
Product information "Mini drilling rods"
These mini boring bars are ideal for internal turning. These internal turning tools are made entirely of carbide and have a cutting geometry that allows them to be plunged into the material without pre-drilling. This is high-quality industrial quality. The mini drilling rods are used. They were used on a CNC machine and will be replaced after a certain period of time. Only minor signs of wear can be seen. They are still very sharp and the remaining sharpness is completely sufficient for working on brass, aluminum or steel. In addition, the cutting edge can be re-sharpened relatively easily. A suitable tool holder for the boring bars can be found here.
We also use these turning steels for internal turning in our workshop and are very impressed by the properties and possibilities.
The following dimensions are available.
- Mini drilling rod 3.5x17 Minimum inner diameter: 3.5mm / Maximum immersion depth: 17mm / Total length: 30 mm
- Mini drilling rod 4.7x22 Minimum inner diameter: 4.7mm / Maximum immersion depth: 22mm / Total length: 35 mm
- Mini drilling rod 4.7x32 Minimum inner diameter: 4.7mm / Maximum immersion depth: 32mm / Total length: 45mm
- Mini drilling rod 5.6x22 Minimum inner diameter: 5.6mm / Maximum immersion depth: 22mm / Total length: 35mm
- Mini drilling rod 6.5x27 Minimum inner diameter: 6.5mm / Maximum immersion depth: 27mm / Total length: 40 mm
Hersteller
Bengs ModellbauIm Kirchfelde 6
31675 Bückeburg
info@bengs-modellbau.de
Verantwortliche Person
Patrick BengsBengs Modellbau
Im Kirchfelde 6
31675 Bückeburg
info@bengs-modellbau.de
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1 review
4 November 2025 19:02
Perfekt. Scharf, standfest und lassen sich gut nachschleifen
Ich bin absolut begeistert von diesen Mini-Drehstangen. Besitze mittlerweile 9 verschiedene und habe damit schon allerlei Materialien bearbeitet. Zähes Alu (weiß nicht welcher Typ), kurzspanendes Messing, 42CrMo4 QT und sogar mal Holz. Was ich besonders beeindruckend finde ist wie standfest die Teile sind. Ok, ist halt Hartmetall. Der Unterschied zu HSS Co Drehstangen ist schon gewaltig.
Die Drehstangen sind halt gebraucht und das sieht man bei der ein oder anderen auch schon (hatte mal ein oder zwei, wo ne kleine Ecke abgeplatz war). Aber im großen und ganzen sind die Dinger in einem tadellosen Zustand und extrem scharf!
Man kann die Drehstangen auch relativ gut an einem Doppelschleifer nachschleifen und schärfen. Nicht allzu oft, weil die Schneiden recht kurz sind, aber im Anbetracht des Preises ist das völlig ok.
Für mich wirklich ein Gamechanger dieses Produkt, gerade als Privatperson. An sowas kommt man ja als Privatmensch nicht unbedingt und wenn dann nur zu recht happigen Preisen.
Kunden Kauften auch
The mini drilling rods we offer fit into this holder for mini drilling rods. The holder is made of 12 mm square material and therefore also fits into steel holders on smaller lathes. The boring bars are inserted into the holder and fixed with an M4 hexagon socket screw. The holders also fit into the tool holders of very small lathes. Dimensions Holder for mini boring bars Height: 12mm Width: 12mm Length: 60mm
The screwdriver has an ergonomically designed multi-component handle with a smoothly rotating cap (for fixing the fingertip of the index finger for precise work). The blades are made of high quality tool steel. The surface is matt chrome-plated. The hexagonal screwdrivers have a Hex-Plus profile that prevents the screw head from deforming and transmits more torque. This also allows an angular offset between screwdriver and screw of up to 10°. This makes screwing in places that are difficult to access much easier. These screwdrivers for hexagon socket screws are particularly suitable for model making. Hexagonal screwdriver for hexagon socket 1.5mm is suitable for: grub screws M3, cylinder screws with hexagon socket M2 Hexagonal screwdriver for hexagon socket 2mm is suitable for: grub screws M4, Hexagonal screwdriver for hexagon socket 2.5 mm is suitable for: grub screws M5, cylinder screws with hexagon socket M3 Hexagonal screwdriver for hexagon socket 2.5 mm is suitable for: grub screws M6, cylinder screws with hexagon socket M4 Technical data hexagonal screwdriver for hexagon socket Hexagon 1.5 mm / 2 mm / 2.5 mm / 3 mm Blade length 60 mm whole length 157 mm
Machine reamers for the production of dimensionally accurate bores. By rubbing with a reamer, not only good shape and dimensional accuracy, but also good surface quality is achieved. This is of crucial importance when manufacturing sliding bearings in mechanical engineering and model building. The long cutting edges of the reamer have a left-hand twist, which causes the resulting chips to be discharged downwards when rubbing. Thus, a scratching of the bore surface by the resulting chips is avoided. Our machine reamers have industrial quality and can be used to grind drillings in steel, brass, copper, cast iron, aluminum and stainless steel. Please always use enough cutting oil when rubbing, which considerably increases the service life of the reamer. In model construction, these reamers are suitable for producing piston rod guides for steam engines, Stirling engines and flame eaters. The reamers are also ideal for producing bearing blocks with plain bearings or for producing cylinders with a very clean surface. If you produce the axis bore with a reamer for flywheels, the flywheel runs particularly round. Provided you have the flywheel without impact in the lathe. The machine reamers can be used both on a lathing machine and in a column drilling machine. With long cutting edges and link spiral Maximum roundness accuracy industrial quality These reamers are available: Reamer 1H7 / Shaft 1mm / cutting length 16mm Reamer 1,5H7 / Shaft 2mm / cutting length 21mm Reamer 2H7 / Shaft 2mm / cutting length 26mm Reamer 3H7 / Shaft 3mm / cutting length 29mm Reamer 4H7 / Shaft 4mm / cutting length 46mm Reamer 5H7 / Shaft 5mm / cutting length 57mm Reamer 6H7 / Shaft 6mm / cutting length 56mm Reamer 7H7 / Shaft 8mm / cutting length 71mm Reamer 8H7 / Shaft 8mm / cutting length 80mm Reamer 10H7 / Shaft 10mm / cutting length 91mm Reamer 12H7 / Shaft 10mm / cutting length 110mm Reamer 14H7 / Shaft 14mm / cutting length 112mm Reamer 15H7 / Shaft 14mm / cutting length 114mm Reamer 16H7 / Shaft 14mm / cutting length 123mm Reamer 18H7 / Shaft 14mm / cutting length 135mm Reamer 20H7 / Shaft 16mm / cutting length 145mm Reamer 25H7 / Shaft MK3 / cutting length 174mm Reamer 26H7 / Shaft MK3 / cutting length 178mm
This twist drill set consists of 49 profile-ground drill bits. The twist drills have a particularly high concentricity and pitch accuracy, as well as a precise tip grind. You can recognize profile-ground drills by their bare surface. The drill set is delivered and stored in a practical metal box. Thanks to the precise tip grinding, the drills do not run and drill round, dimensionally accurate holes. The twist drill set is not a hardware store product but rather industrial quality. Thanks to the 0.1mm gradation of the drills, you always have the right drill at hand, regardless of whether you want to make threaded holes, an undersized hole for a reamer or an oversized hole for a shaft bushing with a clearance fit. Industrial quality (not hardware store goods) You have two different drill boxes to choose from: Twist drill set from 1mm - 5.9mm drill bits 49 pieces Twist drill set of 6mm - 10mm drill bits 40 pieces Replacement Twist drill to fill the drill boxes can be found here.