The Magnum Super Premium drills will substantially outperform cobalt drills in work hardening stainless steel applications. This performance advantage is the result of construction differences between the two types of drills. Cobalt drills, manufactured to Type J NAS907 specs, has a very thick web. This web is necessary to limit breakage of the brittle cobalt steel. Magnum Super Premium drills are made of special Hi-moly tool steel, which is much tougher than cobalt steel. The web on a Magnum Super Premium drill can be thinned considerably due to the toughness of the steel.A Magnum Super Premium drill with its thin web will penetrate the work hardening stainless fast enough to continually cut beneath the chip which is hardening from deformation. This means the drill is cutting softer steel. The cobalt drill, with its thick web, cannot be fed at a fast enough rate to cut beneath the area which is hardening. As a result the cobalt drill is continually drilling into hardened steel.

May 7 - Now announcing UPS 2nd day air for one flat rate of $14.00. Some restrictions apply. Contact sales@internaltool.com for more details.

Click on a product name below to access the 'Build Your Own' specification form. Please add your specific dimensions and quantities, then print out the form and return it to us.

10 Series Standard Boring bar now available with corner radius, AlTiN coating, and Tin Coating. Made from Solid Micro-grain Carbide, Tapered Neck and fillet radius provides maximum rigidity, All shanks have a lockdown flat for faster setups. These are made for boring all types of materials!

May 7 - Now announcing UPS 2nd day air for one flat rate of $14.00. Some restrictions apply. Contact sales@internaltool.com for more details.

Check out our new line of End mills, email info@internaltool.com for Details. This Featured tool is from our series 126 High Performance Aluminum Cutting Endmills. These are designed for roughing and finishing Aluminum Alloy material, they feature 3 Flutes, 45 Degree Helix, Variable Pitch, Full Eccentric Relief, and Zirconium coating.