Page 264 - ISCAR(HOLE_MAKING_CATALOG_65)

DEEP DRILLING - BTA SYSTEM

SHIM GPS
Shims for GPS Pads
W1
OAL

Designation W1 OAL
SHIMSET-GP04 4.00 15.90
SHIMSET-GP05 5.00 18.00
SHIMSET-GP06 6.00 20.00
• 5 shim set contains 5 shims in thicknesses of 0.01mm, 0.02mm, 0.03mm, 0.04 mm and 0.05mm respectively • Adjusting shims are sold by set only, and are not to be sold
separately
Shim Combinations for Various Diameters
Diameter Adjustmemts (mm) Shim (s) for Measuring Guide Pad Shim (s) for Supporting Guide Pad Number of Shim Sets Needed
+0.01 0.01 0.01 2
+0.02 0.02 0.02 2
+0.03 0.03 0.01+0.02 1
+0.04 0.04 0.01+0.03 1
+0.05 0.05 0.02+0.03 1
+0.06 0.01+0.05 0.02+0.04 1
+0.07 0.02+0.05 0.03+0.04 1
+0.08 0.03+0.05 0.04+0.04 2
+0.09 0.04+0.05 0.04+0.05 2
+0.10 0.05+0.05 0.04+0.04+0.02 2
Assembly Instructions STEP 4
STEP 1 Install the adjusting shims underneath the guide pads,
Measure the DTD drill diameter between the measuring guide pad respectively. Put the guide pads back on the tool.
and the insert cutting edge. If a pre setter is not available, use a
micrometer or caliper. For a precise drill diameter measurement, it is
recommended to test drill a hole and measure the hole diameter.

STEP 5
Measure the drill diameter again to confirm that the
required diameter is obtained on the DTD.
STEP 2
Select the shim combinations according to the chart above to obtain
the required hole diameter. Take into consideration that the actual
diameter of the drilled hole tends to be slightly larger (usually +20 m
to +30 m) than the drill’s nominal diameter — i.e. add 20 m-30 m
to the measured drill diameter in Step 1 before the final drill diameter.
STEP 6
Drill a hole to confirm that the required hole diameter is achieved.

STEP 3
Remove the guide pads.

262 ISCAR