Drill Heads

New to this next generation of Red Helix™ Drill Bits are two features: a Quad Edge™ Tip and Enhanced Tapered Web™. The Quad Edge™ Tip delivers a longer life with a precision start and four cutting edges to stay sharper longer. The drill bits’ Enhanced Tapered Web™ acts as an internal backbone and strengthens the bit to reduce premature breakage; a common user frustration.

With the special flute geometry, the chips (swarf) are evacuated effectively. This means that hole depths of up to 12 x Dc can be easily achieved. Oil or emulsion can both be used as a coolant with these drills. For deeper holes beyond 8 x Dc, Walter has also introduced a corresponding line of pilot micro drills, the DB131. 

The new version of the solid carbide plunge mill is based on the same technology as the short version, transferred directly to the new one. Now it is possible to plunge perpendicularly into the material and reach the maximum milling depth of 5 x d in a few steps. Despite its length, the milling cutter is extremely stable and at the same time impresses with its cutting speeds, chip removal rates as well as a long tool life and surface quality, all this from a milling diameter of one millimeter (.039”). 

FH3125 is a new grade specifically developed to enhance the guide pad’s wear resistance in machining various materials. The dedicated carbide substrate of the grade is designed to reduce guide pad breakage, providing long and predictable tool life in deep hole processes. The corners of both ends of the guide pad are designed to allow smooth entry into the guide bushing or pilot hole to control vibration impact and further decrease the risk of rupture.

The latest additions include inserts with 0.8 mm (.032″) nose radius in versatile AH725 grade. 0.8 mm nose radius will provide the cutting edge with strength, preventing edge fracture for predictable tool life. In addition, AH725 enhances the insert’s wear resistance during machining of various materials, ensuring high precision and boosts productivity. 

DrillForce-Meister incorporates a unique seat design that enables easy and swift drill head exchanges, while maximizing the clamping security, making drilling easy on curved surfaces, inclined exits, or components with a stability problem. The seat is designed with a maximum possible contact surface to hold the drill head in place for secure stability during demanding large-diameter bore drilling with the IT9-IT10 hole tolerance.

To cover the breadth of applications within the MRO segment, there are drills for general purpose machine and portable drilling. These include the popular HSS R10 series for right hand drilling and HSS L10 series for left hand drilling. Also included are the carbide DC series of center drills. There is a specific selection for sheet metal drilling and spot weld drilling. 

DrillMeister incorporates a unique self-locking interface that enables simple and secure drill head exchange. Since drill heads can be replaced without having to remove the drill body from the spindle, tool setup time can significantly be reduced, eliminating presetting, offset, and touch-off of the replaced tool. 

Small diameter gundrills have resulted in cost savings. This was driven from tool life and throughput improvements, including several case studies that were done that resulted in doubling production capability

DrillMeister offers the TIDCF chamfering holder that can be attached to the TID drill shank allowing chamfering and drilling in a single pass for reduced machining times. The chamfering inserts are available for 30°, 45°, and 60° chamfers. The new TIDCF holder line can accommodate smaller drills in diameters from 7.5 mm to 9.9 mm (.295" - .390") for improved machining processes.