Suburban Precision Tri-Blocks
Made of steel, carburized & hardened to Rockwell "C" and ground on all six sides.
Available as single blocks or in matched pairs, per chart below.
B-123-H1-M has one 1/2" through hole in 2" x 3" face.
11-hole models have 5/16-18 tapped holes.
23-hole models have 3/8-16 tapped holes.
All models, except PB-123, furnished with a fitted wooden box.
B-123-H11-M has drilled, counter-bored & tapped holes to allow screw mounting and conversion into angle plates & other precision set-ups.
B-123-H23M, B-234-H23-M & B-246-H23-M have tapped holes & matching clearance to allow screw mounting and conversion into angle plates & other precision set-ups.
Specifications:
| MODEL | SINGLE or PAIR | HOLES | SQUARE | FLAT & PARALLEL | SIZE | Weight |
| B-123-H1-M | PAIR | 1 | 0.0001"/1" | 0.0002" | 1" x 2" x 3" ±0.0002" | 3 lbs. |
| B-123-H11-M | PAIR | 11 | 0.0001"/1" | 0.0002" | 1" x 2" x 3" +0.0001"/+0.0003" | 3 lbs. |
| B-123-H23-M | PAIR | 23 | 0.0001"/1" | 0.0002" | 1" x 2" x 3" +0.0001"/+0.0003" | 3 lbs. |
| B-123-NH-M | PAIR | NONE | 0.0001"/1" | 0.0002" | 1" x 2" x 3" +0.0001"/+0.0003" | 3 lbs. |
| B-234-H23-M | PAIR | 23 | 0.0001"/1" | 0.0003" | 2" x 3" x 4" +0.0001"/+0.0004" | 12 lbs. |
| B-246-H23-M | PAIR | 23 | 0.0001"/1" | 0.0003" | 2" x 4" x 6" +0.0001"/+0.0004" | 24 lbs. |
| PB-123 | SINGLE | NONE | 0.0002" total | 0.0002" | 1" x 2" x 3" ±0.0001" | 2 lbs. |
