L H Dottie Co SDS349 Sds Plus Rotary Hammer Bit 3/4x9 in

Product Description

The L H Dottie Co SDS349 is an SDS Plus rotary hammer drill bit designed for concrete, masonry, and similar hard-substrate drilling applications. The SDS Plus shank interface locks into compatible rotary hammer chucks, allowing the tool to deliver both rotational cutting and hammering action simultaneously. At 3/4 inch in diameter and 9 inches in overall length, this bit is suited to boring anchor holes, conduit clearance holes, and structural penetrations in concrete block, brick, and poured concrete. Electricians, plumbers, HVAC installers, and general trade contractors reach for this bit when fastening into masonry substrates.

This bit fits standard SDS Plus rotary hammers commonly used on commercial and residential job sites. The 3/4 inch diameter is a frequently specified size for sleeve anchors, drop-in anchors, and through-penetrations for pipe or conduit. The 9 inch working length provides sufficient depth for typical wall and slab penetrations without requiring an extension. It is sold as a single unit and is appropriate for intermittent production drilling or spot-drilling tasks across trade disciplines.

Key Features

• SDS Plus shank for positive chuck engagement and tool-free bit changes
• 3/4 inch cutting diameter for anchor and penetration work
• 9 inch overall length for standard-depth masonry penetrations
• Compatible with all SDS Plus rotary hammer platforms
• Sold individually — one bit per unit

Compatibility

Designed as an OEM-style replacement or standard drill bit for use with SDS Plus rotary hammer tools across trade applications.

Installation Notes

This bit is installed by trade professionals including electricians, plumbers, and HVAC mechanics using SDS Plus rotary hammers. Always wear appropriate PPE including eye protection and hearing protection when drilling masonry. Confirm the drill is set to rotary-hammer mode before use, and ensure the bit is fully seated and locked in the chuck before beginning a cut. Refer to local building codes and anchor manufacturer specifications for minimum edge distance and embedment depth requirements.