GUNDRILL SPEEDS, FEEDS & COOLANT PRESSURES 3.82 x SFM. RPM = Diameter. *Indicates a two flute drill may be used at two times the recommended feed rate.

DRILLING TOOL LIST - Indexable drill from large diameter to small diameter, Solid drill, Brazed gun drill with short delivery!

A gun drill was used for deep hole drilling and we used etalon material, were here is possible to define cutting forces without any further 

Tapping Speed can be calculated using: (Use Table below) RPM = Feed Speed (SFM) / 0.26 x Tap's Outer Dimension. Tapping speeds should be " DECREASED " if. • Lubricant is Poor or Flow is Restricted. • Bottom lead or Spiral flute taps are used. • Thread depth ( % ) increase. • Thread pitch is course.

Gundrill speed & feed calculator within CNC Machinist calculator app. Calculates sfm, feed, coolant pressure, & cycle time. www.cncdirt.com

GUNDRILL SPEEDS, STARTING Toll Free Tel: 800-658-8855 • Fax: 800-682-3003 FEEDS & COOLANT PRESSURES PARAMETERS (Single Flute) 0.0550 0.0781 0.1250 0.1562 0.1875

Tool diameter and Cut length in this calculator in inches. Milling RPM and IPM calculations use the desired tool diameter, number of teeth, cutting speed, and cutting feed, which should be chosen based on the specific cutting conditions, including the workpiece material and tool material. Milling Speed and Feed Calculator

To calculate the feed rate, use the following formula: f = N × fr. (Eq. 3) where f = calculated linear feed rate of the drill [in/min]. N = spindle speed 

Single-fluted gun drills eb 80 with brazed carbide head The dimensions required to calculate the length speed) up to a drilling depth of approx.

Cutting speed. 90 m/min. 70 m/min. 110 m/min. 70 m/min. Feed f Even higher cutting speeds are possible compared to the gundrill with brazed carbide tip 

Calculate speed, feed, cycle time & required coolant pressure for gun drilling based on material and hardness.