Hand drivers, screwdrivers and nut drivers in SAE and metric sizes. Regular, heavy duty and insulated screwdrivers, heavy duty nut drivers, hex hand drivers and hex ball drivers. Phillips, slotted, Torx, Torx Plus, tamper resistant Torx, Pozidriv and more. Hard to find items our specialty. Fast delivery.
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| Diamond Series | Heavy Duty Series | Insulated 1000VAC | Nut Driver | T-Handle |
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| Stubby | Combo Driver | Combo Ratchet Driver | Combo T-Handle | Combo T-Handle Ratchet Driver |
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You can shop for a hand driver / screwdriver by clicking on any of the pictures of the fastener heads above or Search our database for a specific fastener or Browse our catalog index.
Choosing the proper heat treat for screwdriver tools is important in achieving long tool life. Different applications, different operators, and different power tools require different heat treats. We offer a choice of three heat treat hardness levels in many or our screwdriver bits to match the particular customer's application. These heat treats are specified by a letter suffix as follows:
X - The
hardest heat treat available (this is also the default value)
I - Intermediate hardness
R - Lowest Hardness
Selecting the heat treat best suited for a particular application may require some trial and error. The proper heat treat depends on the failure mode. If the bit breaks or shatters, select a bit with less hardness. If the failure mode is wear, select a harder bit. Many times both breakage and wear may occur within the same application. This can be due to a number of factors such as a different operator, different torque values, and different power tool settings.
In general, high torque application require "R" heat treats to withstand twisting and resist breakage. The "X" heat treat is most suitable for low torque applications, particularly if hardened screws are used.
If a failure occurs, a change in hardness may result in better service. The "X" heat treat is most common and should be selected unless the specifics of an application or an existing problem would suggest using "I" or "R" hardness.
To specify a particular heat treat, we simply add a letter suffix to the part number. For example to specify "X hardness" in a #2 Phillips insert, the part number would be the standard 10 digit number 1011SBnnnnX. Not all bits are available in all heat treats. Special heat treats can be supplied for a particular application. Contact us for specific recommendations. If no number is appended to the 10 digit part number then the heat treat default value is "X" and the price shown is based on the "X" heat treat.
If you have a requirement for a hand driver / screwdriver or many hand drivers / screwdrivers, insert bit or many insert bits, just go to the page in this web site dealing with that specific product.
Shipping charges are calculated automatically while you are in the buying process. After you press the "Checkout" button a new screen will ask for shipping method, shipping address and payment method. If you are in California there will be an automatic sales tax added. In addition there will be 50¢ handling charge added to all orders. If you should want to try different shipping methods to get the one best suited for you, simply click the "Back" button on your browser, change the shipping method and click on "Continue". If you want to try still another shipping method, simply repeat this procedure. Your hand drivers / screwdrivers order will receive our prompt attention.
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Copyright © 1999 Aaron's General Store.com
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