BIG Daishowa AG35-HMC20S W ST20-SRC12SS-250 Shrink Fit Holder

BIG Daishowa AG35-HMC20S W/ ST20-SRC12SS-250 Super Slim Shrink Fit Holder is a compact, slim-profile shrink-fit tool holder designed for tight-clearance milling and mold work. The designation ST20-SRC12SS-250 in the title identifies the included ST20-SRC12SS-250 assembly while AG35-HMC20S serves as the base part number for this shrink-fit family, all produced by BIG Daishowa in Japan. This unit is listed as used and carries SKU 212833, with a weight of 3.99 lb, reflecting a portable yet rigid holding solution for demanding applications. Shrink-fit holders rely on induction heating to clamp tools, enabling a strong, concentric grip with quick tool changes, a methodology highlighted in BIG Daishowa’s shrink-fit lineup. The broader Slim/Shrink-Fit family covers clamping diameters from φ3 to φ25, making the AG35-HMC20S with ST20-SRC12SS-250 suitable for deep end milling, wall machining, and precision mold work where space is constrained and runout accuracy matters. In practice, this configuration offers a reduced envelope without compromising tool retention, appealing to multi-axis setups and tight machining cells that require a proven, compact holding solution for high-precision tooling.