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THB Series Target Holder Bushings
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Get more measurement flexibility |
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The THB Series Target Holder Bushings are great for converting targeted
holes to the shank size of your SMR adapters. Slip this
precision bushing into the hole you wish to target, and the
new bore diameter will fit the  SMR adapter, holding it on
center of the original hole.
Choose an "A" value from the table below, and pair with
a "B" value to create the item number for the product that
you want, for example,
THB-.375 -.25. Or, use this part number format to describe
your own custom size bushing.
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Outer dia. |
A |
D |
Outer dia. |
A |
D |
| 0.2500" |
.25 |
0.625" |
8mm |
8MM |
18mm |
| 0.3125" |
.3125 |
0.688" |
10mm |
10MM |
20mm |
| 0.3750" |
.375 |
0.750" |
12mm |
12MM |
22mm |
| 0.4375" |
.4375 |
0.813' |
14mm |
14MM |
24mm |
| 0.5000" |
.5 |
0.875" |
16mm |
16MM |
26mm |
| 0.6250" |
.625 |
1.000" |
18mm |
18MM |
28mm |
| 0.7500" |
.75 |
1.125" |
20mm |
20MM |
30mm |
| 1.0000" |
1 |
1.375" |
22mm |
22MM |
32mm |
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Bore dia. |
B |
| 0.1875" |
.1875 |
| 0.2500" |
.25 |
| 4mm |
4MM |
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OD tolerance: +0.0000", −0.0005"
(+0.000mm, −0.013mm)
ID tolerance: +0.0005", −0.0000"
(+0.013mm, −0.000mm) |
Flange thickness: 0.200" ±0.0005"
for English; 5mm ±0.013mm for metric
Material: Stainless Steel
Hardness: HRC 42-45 |
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- 0.5TH-x-.25 (with 1/4" shank)
- Any SMR adapter or targeting aid with a 1/4" shank
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