Klein Tools 647M Magnetic Nut Driver Set 7-Piece
- Material Type: Blend
- Item Weight: 1.5 pounds
- Manufacturer Warranty Description: 1 year manufacturer
- Unit Count: 1
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A single, full weight Klein driver for buyers who already know which tip they need. Reasonable pick if you trust Klein's build quality.
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ASIN: B000MKIUYQModel: 647MCategory: Screwdrivers
Overview
The Klein 647M is a single screwdriver from Klein Tools, weighing 24 ounces on its own. That weight points to a full size shaft and handle built for repeated use rather than a compact pocket driver.
The listing does not specify tip type, blade length, or handle style for the 647M, so this profile relies on the confirmed weight and single piece count. Confirm the tip type directly with the listing images if that detail matters for your job.
- Klein Tools brand
- 24 ounce weight
- Single piece screwdriver
- Model 647M
Who it's for
Fits tradespeople who want one substantial Klein screwdriver for daily carry rather than a boxed set. Less useful for anyone who needs a specific tip size confirmed before ordering, since that isn't listed here.
Pros and cons
- Full size, heavy duty build
- Klein Tools brand reliability
- Tip type not specified in the listing
- Sold as a single piece, not a set
Performance notes
At 24 ounces for a single driver, the 647M carries more heft in the handle and shaft than a compact driver, which in general use typically means more leverage and less hand fatigue during repeated turns.
Specifications
| Brand | KLEIN |
|---|---|
| Model | 647M |
| Dimensions & fit | |
| Item Weight | 1.5 poundshigher than 98% of 112 screwdrivers |
| Construction & materials | |
| Material Type | Blend |
| Finish Types | Brushed |
| Included components | |
| Unit Count | 1 |
| Number Of Pieces | 1 |
| Included Components | 646-3/16M, 646-1/4M, 646-5/16M, 646-11/32M, 646-3/8M, 646-7/16M, 646-1/2M |
| Warranty & support | |
| Manufacturer Warranty Description | 1 year manufacturer |
| Other details | |
| Item Type Name | Tools |
Closest rivals on specs
CRAFTSMAN CMHT65075N Bi-Material Screwdriver Set 8 Piece- Item Weight 1.5 vs 1.68 pounds (-11%)
Amartisan Magnetic Screwdriver Set 10-Piece- Item Weight 1.5 vs 1.21 pounds (+24%)
Frequently asked questions
How heavy is the Klein 647M?
It weighs 24 ounces, heavier than a compact pocket driver.
Does the Klein 647M come as a set?
No, it is sold as a single screwdriver.