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» Chuck Keys

3/8"-1/2" 10mm RatchKey Chuck Key HC-12

RKC-2468

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Product Information

Most of the chuck keys provided by manufacturer’s with their tools are virtually worthless. The standard “L shape” design doesn’t allow you to really tighten the chuck, which often results in bit slippage and a burr on the shank. These Ratchkey chucks are better than just simple replacements. The one-way ratcheting action allows you to tighten chucks faster and more easily, and the handles are large enough to allow you to exert the appropriate force (the steel-handled TwinKey can apply upto 135 inch pounds of torque, and the smaller, red handle RatchKey can apply up to 120 inch pounds of torque). Surprisingly, there is no standard size for chuck keys, and most of the installed chucks do not have any model number on them. That means selecting the right model is a bit tricky. To help you select, our web site lists many of the chucks each key will fit. Available in two styles: the TwinKey™ has two pair of different chuck keys at opposite ends of the steel grip, while the Red RatchKey has one pair of ratcheting keys on the end of an steel reinforced plastic handle. Note that Bosch tools typically use Rohm chucks. Made in USA.

The Ratchkey model HC-12 will fit most 3/8" - 1/2" drills,
as well as the following Jacobs style and other chuck (See Below)

JACOBS
MC4K61
MC4K61AD
MC4K01
MC4K41
MC4K41E
MC4K61
MC8K26
MC8K33
MC8K44
MC8K61
 MC8K64
MC8K26A
MC8K64B
U8K61
U8K64
U8K33
U8K33A
U8K64A
DC8K64TY11

SUPREME
B13A
BM13A
B14B
B14133
B14T33
CB14B
B16A
B16B
 CPB16A
CPB16B
B16133
B16T33
B95A
B95B
B375
BP16A

SEARS
Fits most Sears 1/2" Drills

REPLACES KEYS
B&D (U1533)
Jacobs (KK)
Supreme (B-13)

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