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.