dophee Drill Stop Bit Collar Set, 1/8'', 3/16'', 1/4'', 5/16'', 3/8'', 7/16'', 1/2'', 5/8'' Adjustable Drill Depth Stop Collar Limit Ring with Allen Wrench Set for Drill Bits Consistent Drilling
MATERIAL:The durable alloy steel set screw type collar will stay sturdy when tightened and is specially designed not to damage the bits.
USES: Bit limit rings are used as a shaft collar on machinery and can be used on twist drill bits or brad point drills or any type of bit to prevent excessive drill bit penetration and for any job that uses a bit and needs precision.
FUNCTION: The drill stop bit collar set will quickly and easily help you drill holes to exact depths and are ideal for production work and repeated drilling by positively locking anywhere along the bit.
PACKAGE INCLUDES: Drill stop collar set(8Pcs) with 1Pc Allen Wrench.