Klein Extended Reach Impact Folding Hex Key Set, SAE (70550HD)
Klein Extended Reach Impact Folding Hex Key Set, SAE (70550HD)
Out of Stock - Available to Order - Usually ships in 15-20 days
Product Details
Product Details
Key Features
Overview
The Klein Tools Extended Reach Impact Folding Hex Key Set, SAE (70550HD) combines impact-rated hex bits, folding hex keys and a 1/4" quick-connect barrel in one reinforced nylon handle. This is a folding hex key set designed for electricians and tradespeople tightening set screws and lugs, especially recessed panel lugs that a standard short hex key cannot reach.
Klein lists 11 SAE hex sizes: 3/32", 7/64", 1/8", 9/64", 5/32", 3/16", 7/32", 1/4", 5/16", 3/8" and 1/2". The set is made up of six impact-rated hex keys (bits), five standard folding hex keys and one bit holder. Large sizes up to 1/2" give you the range for demanding lug and set screw work.
The impact hex bits are extended length, 3" to 4" (7.6 to 10.2 cm), to reach deep-set fasteners and recessed panel lugs. The integrated quick-connect barrel accepts 1/4" impact accessories, flip sockets and nut drivers, so the handle doubles as a driver and the bits move between hand and power tools.
The folding keys open independently up to 270 degrees for maximum leverage, and square-cut (flat) hex ends seat to full depth for a secure fit that resists rounding. Keys are alloy steel with a black phosphate finish, and Klein's color-coding system for hex bits speeds up size selection.
The black and orange reinforced nylon handle is 6-3/8" (16.2 cm) long. Overall size is about 6-3/8" x 2-1/4" x 1-5/8" (16.2 x 5.7 x 4.2 cm), and the set weighs 15.36 oz (435 g).
Who should buy it: electricians terminating feeders and service conductors on lugs, plus mechanical and maintenance techs who deal with set screws in recessed spots.
Reach the Lug, Not the Panel Wall
Extended bits get to deep-set fasteners and recessed panel lugs.
- Extended 3" to 4" (7.6 to 10.2 cm) bits
- Impact-rated
Handle, Driver or Power Tool
The quick-connect barrel takes 1/4" impact accessories, flip sockets and nut drivers.
- Integrated 1/4" quick-connect barrel
- Bit changes between hand and power tools
Leverage Where It Counts
Independent keys open up to 270 degrees for more leverage on tight set screws.
- Opens up to 270 degrees
- Square-cut hex ends for full-depth fit
Pick the Size Faster
Klein's color-coding system makes bit sizes quick to identify.
- Color-coded hex bits
- Sizes from 3/32" to 1/2"
What's in the Box
- (6) Impact-rated hex keys (extended bits)
- (5) Standard folding hex keys
- (1) Bit holder (1/4" quick-connect barrel)
- Reinforced nylon handle
Key Specifications
| Hex Sizes | 3/32", 7/64", 1/8", 9/64", 5/32", 3/16", 7/32", 1/4", 5/16", 3/8", 1/2" |
|---|---|
| Measurement Standard | SAE |
| Impact Bit Length | 3" to 4" (7.6 to 10.2 cm) |
| Folding Range | Up to 270 degrees |
| Hex End | Square-cut (flat) |
| Quick-Connect | 1/4" barrel |
| Key Material / Finish | Alloy steel, black phosphate |
| Handle | Reinforced nylon, black and orange |
| Handle Length | 6-3/8" (16.2 cm) |
| Number of Pieces | 12 |
| Weight | 15.36 oz (435 g) |
Compatibility
Built For
Pro Tip
On recessed panel lugs, use the extended bit in the handle to break the set screw free, then let the folding key's 270-degree swing do the final torque where the handle has room to move.
Tool Nut's Take
A Hex Key Set That Reaches the Lug
The Klein Tools Extended Reach Impact Folding Hex Key Set, SAE (70550HD) solves the recessed-lug problem with extended impact bits and a quick-connect handle.
- Who it's for: Electricians terminating on lugs and anyone fighting recessed set screws.
- Why it stands out: Sizes up to 1/2", 3" to 4" impact bits, 270-degree folding keys and a 1/4" quick-connect barrel.
- Worth knowing: SAE only, and at 15.36 oz it is heavier than a basic folding hex key.
Common Questions
- What sizes are in the Klein 70550HD? 3/32", 7/64", 1/8", 9/64", 5/32", 3/16", 7/32", 1/4", 5/16", 3/8" and 1/2".
- Can the bits be used in a power tool? Yes. The bits are impact-rated, and the 1/4" quick-connect barrel works with impact accessories, flip sockets and nut drivers.
- How long are the extended bits? 3" to 4" (7.6 to 10.2 cm).
Join over 1/2 million customers who have trusted Tool Nut and given us a 4.8+ star rating on Google. Celebrating over 30 years of building together, since 1994.
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
