Impact Socket Adapter Bit Set 3 PCS 1/4" 3/8" 1/2"+105 Right Angle Drill Attachment Screwdriver Drill Bit Holder Extension + Flexible Drill Bit Extension-BLACK SETPRODUCT SPECIFICATION:MATERIAL: Chrome-vanadium steel; Carbon Steel;SHANK: 1/4” Hex ShankBending Angle: 105°Length of the flexible drill bit extension: 11.7”SOCKET ADAPTERS:1/4 * 1/4 * 65mm length -- 1/4 " shank can be converted to 6.35mm square head3/8 * 1/4 * 65mm length -- 1/4 " shank can be converted to 9.4mm square head1/2 * 1/4 * 72mm length -- 1/4 " shank can be converted to 12.6mm square headPRODUCT FEATURE:✮ [ACCESS TO CONFINED SPACE]-This impact drill bit extension set includes 1 pcs 11.7” long flexible drill bit extension, 3 pcs impact socket adapters and 1 pcs 105 degree right angle cordless drill attachment. Combination of the tools allow various access to confined or hard-to-reach space, making your hand tool more versatile; ✮ [PREMIUM MATERIAL]-105 right Angle drill adapter and 3 pcs impact driver bit socket adapter set is made of heavy-duty chrome-vanadium steel; flexible drill bit extension is made of premium carbon steel; This quick change drill bit holder set is reliable, withstanding high pressure; Excellent surface coating provides extra protection from damage against elements and substances such as oil and fluids that may come in contact with the extension bars during usage; ✮[UNIVERSAL 1/4” HEX SHANK]-This power tool accessory set has a universal 1/4” hex shank fitting most power tools.