Well I was cruising the web and found these Bosch replacement keyless chucks and took a gamble on them. Bought two for less then the cost of a craptastic replacement Milwaukee OEM chuck. Turns out these are German made ROHMs, 1-13mm (1/16-1/2"), with excellent engagement, metal sleeve, and cheap!
BUT... didnt fit. The oem had a longer sleeve, the Bosch must incorporate a collar into the drill body?
Found a piece of steel tube laying around that fit perfectly! Unreal. I could not have ordered a better piece.
Perfect ID and OD clearances. Chamfered the body side for a conical fit, other side was squared off. Super clean, 100% functional.
Check it out-
BUT... didnt fit. The oem had a longer sleeve, the Bosch must incorporate a collar into the drill body?
Found a piece of steel tube laying around that fit perfectly! Unreal. I could not have ordered a better piece.
Perfect ID and OD clearances. Chamfered the body side for a conical fit, other side was squared off. Super clean, 100% functional.
Check it out-

