February 26, 2025
Additional information
Adapter for drill chucks to accommodate drills with small square shanks
Our drill vises have a square socket at the base of the drill chuck that prevents the drill bit from rotating in the chuck. The size of this socket is designed to accommodate the most common square drill bits, with the drawback that the shanks of small drill bits are too small and therefore slip, or are only held by the jaws. This problem is solved by this adapter made from a small piece of square brass tubing. This reduces the square socket from 8 x 8 mm to 6 x 6 mm.
As a world premiere, FAMAG now presents a carbide-tipped Bormax3! This is an advancement of the traditional Bormax. The standard Bormax is made of tool steel, but has such a sophisticated geometry that during the processing of hardwood and particle boards, the described heat development is almost eliminated. This Bormax has now been further developed and equipped with a wear-resistant carbide tip. The result is called Bormax3: The all-rounder for all-rounders! It is now a tool with the impressive wear characteristics of a carbide-tipped drill and the very good guiding properties of a Forstner bit. With this carbide Bormax, for the first time, it is truly possible to drill perfectly freehand into all wood materials such as: softwood, hardwood (both European and exotic, including Bongossi!), MDF, coated and uncoated particle boards, many plastics, and more! Of course, it can also be used stationary!
With these properties, it sets the new standard in the landscape of all wood drills. The first true universal wood drill or in other words: The all-rounder for all-rounders!
Tip for decision-making on whether the tool steel Bormax or the carbide Bormax is the right one for your specific application: The carbide Bormax is well-suited for freehand drilling according to our experience, but can sometimes be a bit rough. When drilling freehand, start slowly into the wood and then speed up. The original tool steel Bormax cuts cleaner in freehand operation.
With these properties, it sets the new standard in the landscape of all wood drills. The first true universal wood drill or in other words: The all-rounder for all-rounders!
Tip for decision-making on whether the tool steel Bormax or the carbide Bormax is the right one for your specific application: The carbide Bormax is well-suited for freehand drilling according to our experience, but can sometimes be a bit rough. When drilling freehand, start slowly into the wood and then speed up. The original tool steel Bormax cuts cleaner in freehand operation.

Small inconspicuous part and great effect! Use it to make your drill chucks usable for small drills with square shanks!

This is what a four-jaw chuck of a hand drill looks like.

After removing the screw sleeve, the four spring-loaded jaws become visible and at the bottom of the drill chuck is the square drive.
The four jaws serve to center the drill bit.
The square drive functions to secure the drill bit against rotation. In the drill winch we sell, the diameter of this square drive is 8 x 8 mm and the depth is 15 mm.
The four jaws serve to center the drill bit.
The square drive functions to secure the drill bit against rotation. In the drill winch we sell, the diameter of this square drive is 8 x 8 mm and the depth is 15 mm.

The square shank of medium and large drills fits perfectly.

The smaller square shank small drill is slipping. By the way, we cannot tell you which drills fit and which do not, as there have always been large manufacturing tolerances in the production of these drills. Then, of course, it also depends on the user's tolerance, what they personally consider acceptable and what they do not.

Here you can see the same drill with adapter. Fits perfectly! We recommend always ordering this small adapter when purchasing a drill vice and drills with square shank. This way, you can be sure that the application area of your drill vice is broad.
The adapter has a length of 18 mm, making it 3 mm longer than the depth of the square socket of 15 mm. This protrusion allows you to easily grip the adapter with flat pliers in case of jamming.
The adapter has a length of 18 mm, making it 3 mm longer than the depth of the square socket of 15 mm. This protrusion allows you to easily grip the adapter with flat pliers in case of jamming.
