Wera 881/4/1 SB Bit Holder 1/4" Tip 90mm

881/4/1 SB Bit holder with variable screw depth limitation, 1/4", x 95 mm 1x 881/4/1 Bit holder with variable screw depth limitation: 1/4", x 95 mm 2x 9201 Felt ring for 881/4/1: 27 mmFor patio construction, the screws should be countersunk to be evenly flush with the decking. The 881/4/1 bit holder with variable screw depth limitation and felt ring allows for a uniform depth and protects the surface from brush marks. Two spare felt rings included.