The Klein Tools QRST11 step drill bit is built for clean, efficient hole cutting when you need larger sizes in a compact, easy-to-handle bit. With a titanium nitride (TiN) finish and a dual spiral flute design, it helps move chips out quickly for faster cuts across common jobsite materials.
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This bit is impact rated and features a 1/4-inch hex shank with a quick-release design for a firm, positive grip in compatible drivers and drills. Easy-to-read laser markings make it simple to identify the two hole sizes (7/8 inch to 1-1/8 inch) while you work, and the fast-starting drill tip helps reduce walking for more stable, precise drilling.
Aluminum titanium nitride coating for durability versus black oxide
Impact rated for use with impact drivers and standard drills
Dual spiral flute design for quick chip removal and faster cutting
Clear laser markings for quick size identification (two hole sizes)
Fast-starting drill tip helps prevent walking for stable drilling
1/4-inch quick-release hex shank for a secure, positive grip
Suitable for steel (up to 16 gauge), wood, plastic, and aluminum
Specs at a glance: High Speed Steel (HSS) construction, titanium nitride finish, 2 flutes (spiral), size range 7/8 to 1-1/8 inch, cutting diameter listed as 1.13 inches, and compact 1.13 x 1.13 x 3.22 inch dimensions.
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