4-piece Replacement Chuck Key, Electric Chuck Key, 10mm/ 13mm/ 16mm/ 20mm, Universal Chuck Key for Drill, for Impact Drill, Drill Clamping Tool.

【Carbon Steel Materials】 Made of high-quality carbon steel. Small size, easy to carry. Used to check the tightness or looseness of electric drill bits. 【Thumb Grip Styles】 Designed for performance. Thumb grips increase leverage and user comfort. Mild steel handles limit the potential for dangerous breakage under excessive load. 【Easy to Use】 Replacement wrench with a black surface. Suitable for checking the tightness of loose bits on electric drill bits. 【Durable and Practical】 Will check the tightness of the play in the tightening tool of the electric drill bit. Fits all common drills with a toothed crown. Can be used in hammer or drill mode, very durable, comfortable to grip. 【Application】 Suitable for most drills and other power tools. Ideal for home improvement projects. Ideal for use with hammer drills when a tight fit is required. Ideal for garages, workshops, carpentry shops, auto parts stores, and machine repair specialists.

Functions:

- Used to check the tightness or looseness of electric drill bits.

- Can be used in hammer or drill mode, very durable, comfortable to grip.

- Ideal for tightening and loosening drill chuck jaws.

Specifications:

Material: Carbon steel

Color: Black

Size: As shown in the picture

Package includes:

1 x 10mm chuck key

1 x 13mm chuck key

1 x 16mm chuck key

1 x 20mm chuck key