Disston Company 120741 Masonry Drill Bit 1/4 X 4 Inches

Product Description

The DISSTON COMPANY 120741 is a 1/4-inch by 4-inch masonry drill bit designed for penetrating hard, abrasive materials common in residential and light commercial construction. It features a straight shank for compatibility with standard drill chucks and a positive point angle geometry that allows for quick, accurate bit placement without walking at the start of a hole. The bit carries a zinc surface finish that provides a degree of corrosion resistance during storage and use. At 0.04 pounds, it is a lightweight, single-bit tool suited for moderate-duty masonry drilling tasks performed by tradespeople and experienced DIYers alike.

This bit is recommended for drilling cinder block, common brick, plaster, and ceramic tile. It is also rated for moderate use in harder substrates including hard brick, glazed tile, and dry concrete. Typical applications include anchor hole preparation, fixture mounting, and utility penetrations through masonry walls and partitions. It is sold individually on a carded retail package, making it practical as a replacement or supplemental bit on the job.

Key Features

• Positive point angle for accurate bit placement and reduced walking on hard surfaces
• Straight shank fits standard keyed and keyless drill chucks
• Zinc surface finish for corrosion resistance
• Rated for cinder block, common brick, plaster, and ceramic tile drilling
• Suitable for moderate use in hard brick, glazed tile, and dry concrete
• Lightweight at 0.04 pounds for easy single-hand handling

Compatibility

Designed as a standard straight-shank masonry bit compatible with conventional corded and cordless drills equipped with a keyed or keyless chuck accepting a 1/4-inch shank. Not intended for rotary hammer or SDS-style chucks.

Installation Notes

Masonry drilling is typically performed by electricians, plumbers, HVAC technicians, and general contractors when setting anchors or routing penetrations through masonry assemblies. Always wear eye protection and a dust mask when drilling masonry materials. Use a variable-speed drill at a moderate RPM and apply steady, consistent pressure without forcing the bit. Allow the bit to cool periodically during extended drilling to avoid tip degradation.