MITGI Drills

Drills are one of the most commonly used tool types—but not all drills are created equal. Developed for use in precision manufacturing, MITGI standard and custom drills are designed to achieve tight tolerances and repeatable performance in demanding materials. MITGI has built its business around the idea that customers need precision tools, tight tolerances, short lead times, and predictable delivery schedules. Whether you need a quick turn, blanket pricing, or want to work with us on a continuous improvement project, MITGI has you covered.
 

Products and Applications

Drills_001

MITGI offers a wide range of drills available as standard or custom tools.

S16-002-ALTIN_004

Spot drills are often the first tool used in drilling, designed to create a hole location for secondary drilling. MITGI offers 90°, 118°, and 140°point NC spot drills, with a 4-facet point or without. This tool features a 4-facet point.

S16-005_003

90° spot drills are primarily used to create an initial spot for 118° secondary drills. This spot drill is shown without a 4-facet point.

S61-031-8X_006 copy

MITGI offers 140° micro drills on coolant thru material as a standard offer. Available in both 8x and 12x LOC, this line of micro drills includes two coolant holes that follow the helix of the flutes and exit at the tip.

S131-1.50MM-140-5X_003 copy

MITGI standard drill lines include metric sizes on metric shanks. Available off-the-shelf in 5x, 8x, 12x, and 15x flute lengths. For applications that require depth beyond standard flute lengths, consider adding reach to achieve hole depth. Using reach to achieve depth instead of full flute length may increase rigidity and help to reduce the overall tool cost.

S250-049-140-3X-NACO_001COPY copy

Standard tools are available in our catalog uncoated or with ALTIN coating. Occasionally, a different coating may be a better option for the material cutting. This tool is shown with NACO coating, which is available in-house and on request.

 

FAQs

 

MITGI Custom Tools

There may be times when a standard, off-the-shelf drill will work perfectly for your project. However, there may be some slight adjustments to the tool design that could help increase the number of holes per tool, achieve superior surface finish, avoid deflection, or provide improved chip evacuation. There are a few basic questions that can help determine whether a custom tool may be worth considering:

  1. What’s the hole size? Choose a diameter that is slightly smaller than the hole you need to make. You’ll finish the hole with a reamer, so by using a slightly smaller diameter drill you can ensure enough material is left behind for the reamer.
  2. What’s the optimal flute length? Select a flute length that is long enough to finish the hole, but short enough to help avoid deflection. 
  3. What’s the right point angle? The best point angle for a job is determined by the material cutting. 
  4. Is it a blind or through hole? When your part includes a through hole, the chips will be pushed out the bottom by the drill. When your part has a blind hole, the chips may compress or nest up in the bottom of the hole, increasing the chances of breakage. If it’s a blind hole, consider coolant thru material to help aid chip evacuation. 

With the answers to these questions, you can determine whether there is a standard tool that meets your needs. If not, considering a custom tool is easy. Contact us to discuss your custom tool request. Or, complete a tool quote sheet and send it our way. We’ll review the information, connect with you regarding any questions we may have, and send a quote to you promptly.

 

MITGI Standard Tools

MITGI standard tools are designed for general-purpose use. They are an excellent choice when lead times are very short (3 days or less), or when the tool may be used in a variety of materials and applications.