Suburban Precision Tri-Blocks (Pair)
1″ x 2″ x 3″, 1 Hole
B-123-H1-M

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:

See all Suburban Precision Tri-Blocks