Quick-Change Musclechuck™

One router bit change with the Musclechuck™ will have woodworkers wondering why this ingenious chuck wasn't invented along with the router. With just a half-turn of a hex wrench, router bits pop in and out with absolute ease. No more rummaging around for the right wrenches, or skinning your knuckles on the router housing. In fact, you don't even have to use the collet lock - ideal for table- or CNC-mounted routers. Not only that, but the extra reach afforded by the Musclechuck allows you to perform above-table router bit changes in seconds. Unlike many other quick-change router chucks, this one doesn't rely on a cam, so it won't damage the router bit shank, and there's no risk of loosening over time. Available in two types for different groups of routers.

• Easy installation: Musclechuck threads directly onto your router's existing spindle
• The Musclechuck accepts 1/2" shanks out of the box, and a 1/4" reducer (#44454, sold separately) is available for 1/4" shanks
• Chuck adds approximately 1/2" to the length of your router spindle, which makes more cutting length available when the router is mounted in a table
• Use an ordinary 4mm or 5/32 in hex wrench (sold separately) to secure the bits. A ball-ended hex wrench makes for easy above-table bit changes, and a T-handled model is ideal

Type 1 Musclechuck fits the following Porter-Cable routers:

• 630
• 690
• 691
• 693
• 890
• 7518
• 7519
• 7536
• 7537
• 7538
• 7539

Type 4 Musclechuck fits the following routers:

• Bosch 1613 AEVS
• Bosch 1617 EVS
• Bosch 1618 EVS
• Bosch 1619 EVS
• Bosch 1400E
• Bosch GOF2000
• Makita 3612C