Patio construction set T 1, 17 pieces 1x 881/4/1 Bit holder with variable screw depth limitation: 1/4", x 95 mm 1x 3888/4/1 K Rapidaptor Universal Bit Holder, stainless: 1/4", x 50 mm 3x 3851/1 TS bits, stainless: PH 1x25 mm, PH 2x25 mm, PH 3x25 mm 4x 3855/1 TS bits, stainless: PZ 1x25 mm, 2x PZ 2x25 mm, PZ 3x25 mm 6x 3867/1 TS TORX® bits, stainless: TX