For bits from 1/64 to 1/2 inch, the ChumPower Converter offers a wider range than many others. As long as you use the appropriate stall, it’s a capable and safe option for rotary hammers and can easily stand up to heavy use.
Built for the most intricate applications, the Albrecht High-Precision weighs about a pound and is crafted from a hardened steel alloy that resists rust and corrosion. It’s designed for commercial use and, unsurprisingly, comes in at a high price.
For professional settings requiring absolute top-of-the-line precision, look to the Albrecht 70010 . Its incredible accuracy is illustrated by its 1/16-inch maximum capacity as well as its exorbitantly high cost compared to the competition.
At a remarkably low price and able to accommodate some of the most common shanks, the ProTechTrader Universal is a fantastic replacement part for the average light-duty drill. It offers a capacity of 0.8 to 10 millimeters, which is sufficient for general home use.
If you insist on having the best, consider the Albrecht Classic . This model is built to the R8 specification and offers top-of-the-line precision and a long lifespan, ensuring that even the most demanding users will be satisfied.
VME 33 Jacobs
The VME 33 Jacobs is an inexpensive option that’s commonly used as a replacement for worn-out chucks on older Craftsman radial presses. Simply pry the old unit from the shaft and tap this one in with a rubber mallet and it’s ready to go.
Designed for a number 2 Morse arbor, the Llambrich JK-16 is an exceptionally reliable piece of equipment. While it does cost quite a bit, it introduces practically zero run-out when properly installed, and should last for many years.
All Industrial Pro-Series
Not only is the All Industrial Pro-Series an especially affordable option, it can help keep a good press’s total run-out as low as 3/1000 of an inch. It accommodates bits as large as 5/8 and fits on size 3 Jacobs-style mounts.
Rohm Supra 13
A high-end unit offered at a mid-range price, the Rohm Supra 13 features an automatic clamping system that increases pressure proportionally to the force being applied by the drill, which prevents slippage even when under extreme loads.
From a producer of premium German machining components comes the Rohm Extra , which can deliver consistent accuracy to a wide variety of common hand tool makes and models, including DeWalt and Milwaukee drills, at a price that’s impressively low.