The Starrett A1-1 Arbor is an SDS-Plus shank arbor designed for use with hole saws ranging from 14mm to 30mm, enabling tradespeople to utilise their SDS-Plus rotary hammer drills for hole cutting applications. This precision-engineered arbor features a high-speed steel (HSS) pilot drill and is specifically configured to work with SDS-Plus rotary hammer drills when the hammer action is turned off, providing versatility across multiple drilling tasks. Manufactured by Starrett, a respected name in cutting tools, this arbor offers a practical solution for contractors and electricians who need to create precise holes in various materials. The 79mm drill length provides adequate reach for standard applications, whilst the 1/2-20 UNF thread ensures secure attachment to compatible hole saws. The SDS-Plus shank design allows for quick and secure fitting into SDS-Plus chucks, eliminating the need for multiple arbors when switching between standard drilling and hole cutting operations. This arbor is particularly suitable for electrical installation work, plumbing applications, and general construction tasks where accurate hole cutting is required in wood, plastic, or thin metal materials. Features and Benefits: • SDS-Plus shank enables use with SDS-Plus rotary hammer drills for added versatility • High-speed steel pilot drill ensures accurate hole positioning and clean cutting • Compatible with hole saws from 14mm to 30mm diameter • 79mm drill length provides sufficient reach for most standard applications • 1/2-20 UNF thread fitting for secure hole saw attachment Specifications: Arbor Shank Sizes metric: 8.75 hex (excluding SDS-Plus Arbors)mm Arbor Shank Sizes imperial: 11/32 hex (excluding SDS-Plus Arbors)" Screw Thread: 1/2-20 UNF" Chuck Size metric: 9,5mm Chuck Size imperial: 3/8" Drill Length metric: 79mm Country of Origin: CN
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