Aluminum Stop Collar Set - Drill Bit Depth Stop - Superior Split Ring Design - 8 Piece Set (1/2", 7/16”, 3/8”, 5/16”, ¼”, 7/32”, 3/16”, 1/8”) - Drill Bit Holder sold2025 1/4-Inch dual-drive head and socket

1/4-Inch dual-drive head and socket adapter for more versatility

even from soft materials like white pine

PERPETUAL USE - simply write on and erase

【Specifications】 - Sizes: M3 - Quality: 320 Pcs - Material: 304 Stainless Steel - Screw Type: Hex Socket Button Head screw 【Features】 - 304 Stainless steel with rust resistant galvanized finish to ensure life-time use

Aluminum Stop Collar Set - Drill Bit Depth Stop - Superior Split Ring Design - 8 Piece Set (1/2", 7/16”, 3/8”, 5/16”, ¼”, 7/32”, 3/16”, 1/8”) - Drill Bit Holder sold2025 1/4-Inch dual-drive head and socketAluminum Stop Collar Set Drill Bit Depth Stop Superior Split Ring Design 8 Piece Set (1 2", 7 16, 3 8, 5 16, , 7 32, 3 16, 1 8) Drill Bit Holder Superior split ring design made from durable, lightweight aluminum for easier use. 5x holding power vs set screw design. Maintain precise and consistent hole depths and prevent over under drilling mistakes. Quick and easy adjustment at any point on drill bit flutes shafts. Fits twist and brad point drill bits