Blind Hole Lap Set (3/16" - 1/2" x 32nds) by Penn Tool Co.

Acro Laps for Swift Lapping/Polishing/Deburring - SET-6-BH Blind Hole Set (3/16" - 1/2" x 32nds) Features: - Acro laps ensure rapid, precise lapping of holes of varying lengths and diameters (1/8" to 1-1/2"). - Instantly adjustable with high accuracy. Slots in brass barrel allow expansion up to 15 or more by turning the adjusting screw. - No setup time required. No specialized equipment needed. - Stock replacement parts, arbors, brass barrels, and adjusting screws available.

• Efficient Lapping: Acro laps ensure swift and precise lapping of holes of varying lengths and diameters (1/8" to 1-1/2")
• Adjustable Expansion: Easily expand up to 15 or more with milled eccentric slots in the brass barrel
• No Setup Required: No setup time or special equipment needed
• Stock Replacements: Replacement parts, arbors, brass barrels, and adjusting screws are readily available