Bosch Professional 1x Expert SDS plus-7X Hammer Drill Bit – B09417SYWY

Bosch Professional’s EXPERT SDS plus-7X hammer drill bit (6.00 × 165 mm) is built for tradespeople who need fast, reliable holes in reinforced concrete and other demanding masonry materials. The bit is engineered around Bosch’s Full-Carbide 4-cutter head that slices cleanly through hard aggregates and rebar edges while resisting chipping and edge deformation—this gives noticeably longer life and a more consistent hole finish than conventional two-cutter masonry bits.

Performance is the bit’s strongest suit. The 4-cutter full-carbide geometry concentrates impact energy into efficient cutting action and reduces jamming in deep holes; combined with Bosch’s carbide tip technology and a reinforced tip-to-shank weld, the SDS plus-7X handles repeated hammer-drill cycles without losing accuracy. Users report significantly better durability versus older SDS designs—Bosch advertises up to about three times the life compared with some previous entry-level bits—so you spend less time changing bits on site.

Dimensions and fit are trade-friendly. The advertised size for this SKU is 6.00 mm diameter with a 100 mm working length and a 165 mm total length (overall reach), giving a good balance of reach and stiffness for common anchor and fixing holes. The SDS-plus shank fits virtually all SDS-plus rotary hammers and many branded hammer drills, so the bit is compatible across most professional tools in workshops and on-site. These exact dimensional specs and compatibility are consistently listed on Bosch and specialist reseller pages.

In real-world use the bit is ideal for: drilling anchor holes for mechanical fixings, passing conduits through block and concrete walls, preparing holes for chemical anchors, and any job that mixes rebar and tough concrete. Because the head is full carbide and the connection is specially welded for impact resistance, the bit resists premature fracture even when it occasionally contacts steel. For best life, pair the bit with the correct hammer-drill mode (SDS-plus hammer) and use light, steady feed pressure—forcing the bit aggressively only increases wear.

Pack and part data: Bosch lists multiple single-piece SKUs and set options in the SDS plus-7X family; single 6 mm items are sold individually and in multi-bit sets. Part numbering and total lengths can vary slightly by market (examples include part numbers used by resellers), so check the seller listing to confirm the exact total length and packaged part number before ordering.