Screwdrivers are usually classified as flat head or cross-headed. Cross-headed screwdrivers have cross-shaped tips. Take care to use the correct type, since a mismatch may damage the head of the screw or the screwdriver.
More in Home Improvement
© 2007 Dorling Kindersley Limited
The shaft has a flattened, often tapering head and a straight tip that fits into the head of a slotted screw. Flared tips are common on flat-head screwdrivers. The flare makes the tip stronger so it allows you to apply extra torque. By contrast, parallel tips align with the width or diameter of the shaft. This is important when a screw needs to be driven in below surface the edges of a flared tip would wedge in the hole.
We sent a note to our support staff about the glitch you just experienced. Please click the button below to reload your content.
Floral Alternatives For Your Wedding 23 Photos
BATHtastic! Bathrooms from Matt Muenster 25 Photos
17 Clever Ideas for Small Baths 17 Photos
Top 10 DIY Dining Room Projects 10 Photos
DIY Weddings: Menu Ideas and Recipes 11 Photos
Beautiful Bathroom Redos on a Budget 10 Photos
© 2014 Scripps Networks, LLC. All Rights Reserved.